77284023 has 16 divisors (see below), whose sum is σ = 112628736. Its totient is φ = 46926720.

The previous prime is 77284019. The next prime is 77284033. The reversal of 77284023 is 32048277.

It is not a de Polignac number, because 77284023 - 2² = 77284019 is a prime.

It is a super-2 number, since 2×77284023² = 11945640422129058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77284013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22861 + ... + 26022.

It is an arithmetic number, because the mean of its divisors is an integer number (7039296).

Almost surely, 2^77284023 is an apocalyptic number.

77284023 is a deficient number, since it is larger than the sum of its proper divisors (35344713).

77284023 is a wasteful number, since it uses less digits than its factorization.

77284023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48934.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 77284023 is about 8791.1332034044. The cubic root of 77284023 is about 425.9545290795.

The spelling of 77284023 in words is "seventy-seven million, two hundred eighty-four thousand, twenty-three".