77484498 has 64 divisors (see below), whose sum is σ = 191987712. Its totient is φ = 20301120.

The previous prime is 77484481. The next prime is 77484499. The reversal of 77484498 is 89448477.

It is a self number, because there is not a number n which added to its sum of digits gives 77484498.

It is not an unprimeable number, because it can be changed into a prime (77484499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103915 + ... + 104657.

It is an arithmetic number, because the mean of its divisors is an integer number (2999808).

Almost surely, 2^77484498 is an apocalyptic number.

77484498 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 77484498, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95993856).

77484498 is an abundant number, since it is smaller than the sum of its proper divisors (114503214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77484498 is a wasteful number, since it uses less digits than its factorization.

77484498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959.

The product of its digits is 1806336, while the sum is 51.

The square root of 77484498 is about 8802.5279323612. The cubic root of 77484498 is about 426.3225202043.

It can be divided in two parts, 7748 and 4498, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 77484498 in words is "seventy-seven million, four hundred eighty-four thousand, four hundred ninety-eight".