77352028 has 12 divisors (see below), whose sum is σ = 145778920. Its totient is φ = 35700912.

The previous prime is 77351999. The next prime is 77352029. The reversal of 77352028 is 82025377.

It is a junction number, because it is equal to n+sod(n) for n = 77351984 and 77352002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77352029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 743718 + ... + 743821.

Almost surely, 2^77352028 is an apocalyptic number.

It is an amenable number.

77352028 is a deficient number, since it is larger than the sum of its proper divisors (68426892).

77352028 is a wasteful number, since it uses less digits than its factorization.

77352028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487556 (or 1487554 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 77352028 is about 8795.0001705514. Note that the first 3 decimals coincide. The cubic root of 77352028 is about 426.0794300375.

The spelling of 77352028 in words is "seventy-seven million, three hundred fifty-two thousand, twenty-eight".