77301930 has 16 divisors (see below), whose sum is σ = 185524704. Its totient is φ = 20613840.

The previous prime is 77301911. The next prime is 77301943. The reversal of 77301930 is 3910377.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2576731 = 77301930 / (7 + 7 + 3 + 0 + 1 + 9 + 3 + 0).

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, 1288336 + ... + 1288395.

It is an arithmetic number, because the mean of its divisors is an integer number (11595294).

Almost surely, 2^77301930 is an apocalyptic number.

77301930 is an abundant number, since it is smaller than the sum of its proper divisors (108222774).

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

77301930 is a wasteful number, since it uses less digits than its factorization.

77301930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2576741.

The product of its (nonzero) digits is 3969, while the sum is 30.

The square root of 77301930 is about 8792.1516137974. The cubic root of 77301930 is about 425.9874249633.

The spelling of 77301930 in words is "seventy-seven million, three hundred one thousand, nine hundred thirty".