77617023 has 12 divisors (see below), whose sum is σ = 113753304. Its totient is φ = 47040400.

The previous prime is 77616997. The next prime is 77617039. The reversal of 77617023 is 32071677.

It is not a de Polignac number, because 77617023 - 2²⁵ = 44062591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77617093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106548 + ... + 107273.

It is an arithmetic number, because the mean of its divisors is an integer number (9479442).

Almost surely, 2^77617023 is an apocalyptic number.

77617023 is a deficient number, since it is larger than the sum of its proper divisors (36136281).

77617023 is a wasteful number, since it uses less digits than its factorization.

77617023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213846 (or 213835 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 33.

The square root of 77617023 is about 8810.0523834992. The cubic root of 77617023 is about 426.5654342215.

The spelling of 77617023 in words is "seventy-seven million, six hundred seventeen thousand, twenty-three".