77450032 has 40 divisors (see below), whose sum is σ = 165359952. Its totient is φ = 34848000.

The previous prime is 77450029. The next prime is 77450033. The reversal of 77450032 is 23005477.

It is not an unprimeable number, because it can be changed into a prime (77450033) 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 7 ways as a sum of consecutive naturals, for example, 15598 + ... + 19954.

Almost surely, 2^77450032 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 77450032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82679976).

77450032 is an abundant number, since it is smaller than the sum of its proper divisors (87909920).

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

77450032 is a wasteful number, since it uses less digits than its factorization.

77450032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4477 (or 4471 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 77450032 is about 8800.5699815410. The cubic root of 77450032 is about 426.2592997687.

The spelling of 77450032 in words is "seventy-seven million, four hundred fifty thousand, thirty-two".