77490324 has 48 divisors (see below), whose sum is σ = 203918400. Its totient is φ = 25442208.

The previous prime is 77490319. The next prime is 77490461. The reversal of 77490324 is 42309477.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1882 + ... + 12590.

It is an arithmetic number, because the mean of its divisors is an integer number (4248300).

Almost surely, 2^77490324 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77490324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101959200).

77490324 is an abundant number, since it is smaller than the sum of its proper divisors (126428076).

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

77490324 is a wasteful number, since it uses less digits than its factorization.

77490324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10789 (or 10781 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 77490324 is about 8802.8588538043. The cubic root of 77490324 is about 426.3332048910. Note that the first 3 decimals are identical.

The spelling of 77490324 in words is "seventy-seven million, four hundred ninety thousand, three hundred twenty-four".