77932434 has 16 divisors (see below), whose sum is σ = 160077888. Its totient is φ = 25275312.

The previous prime is 77932427. The next prime is 77932447. The reversal of 77932434 is 43423977.

It is a junction number, because it is equal to n+sod(n) for n = 77932392 and 77932401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175302 + ... + 175745.

It is an arithmetic number, because the mean of its divisors is an integer number (10004868).

Almost surely, 2^77932434 is an apocalyptic number.

77932434 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

77932434 is an abundant number, since it is smaller than the sum of its proper divisors (82145454).

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

77932434 is a wasteful number, since it uses less digits than its factorization.

77932434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351089.

The product of its digits is 127008, while the sum is 39.

The square root of 77932434 is about 8827.9348660941. The cubic root of 77932434 is about 427.1424622497.

The spelling of 77932434 in words is "seventy-seven million, nine hundred thirty-two thousand, four hundred thirty-four".