77025432 has 64 divisors (see below), whose sum is σ = 213557760. Its totient is φ = 22953600.

The previous prime is 77025409. The next prime is 77025437. The reversal of 77025432 is 23452077.

It is a self number, because there is not a number n which added to its sum of digits gives 77025432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77025437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13713 + ... + 18495.

It is an arithmetic number, because the mean of its divisors is an integer number (3336840).

Almost surely, 2^77025432 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 77025432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106778880).

77025432 is an abundant number, since it is smaller than the sum of its proper divisors (136532328).

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

77025432 is a wasteful number, since it uses less digits than its factorization.

77025432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4864 (or 4860 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 77025432 is about 8776.4133904460. The cubic root of 77025432 is about 425.4789194027.

The spelling of 77025432 in words is "seventy-seven million, twenty-five thousand, four hundred thirty-two".