77028670 has 16 divisors (see below), whose sum is σ = 140082768. Its totient is φ = 30493440.

The previous prime is 77028667. The next prime is 77028671. The reversal of 77028670 is 7682077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77028671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38736 + ... + 40675.

It is an arithmetic number, because the mean of its divisors is an integer number (8755173).

Almost surely, 2^77028670 is an apocalyptic number.

77028670 is a deficient number, since it is larger than the sum of its proper divisors (63054098).

77028670 is a wasteful number, since it uses less digits than its factorization.

77028670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79515.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 77028670 is about 8776.5978602190. The cubic root of 77028670 is about 425.4848814224.

The spelling of 77028670 in words is "seventy-seven million, twenty-eight thousand, six hundred seventy".