84623157 has 16 divisors (see below), whose sum is σ = 126172480. Its totient is φ = 56053296.

The previous prime is 84623117. The next prime is 84623159. The reversal of 84623157 is 75132648.

It is not a de Polignac number, because 84623157 - 2⁷ = 84623029 is a prime.

It is a super-2 number, since 2×84623157² = 14322157401293298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84623159) 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, 5743 + ... + 14220.

It is an arithmetic number, because the mean of its divisors is an integer number (7885780).

Almost surely, 2^84623157 is an apocalyptic number.

It is an amenable number.

84623157 is a deficient number, since it is larger than the sum of its proper divisors (41549323).

84623157 is a wasteful number, since it uses less digits than its factorization.

84623157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20129 (or 20123 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 84623157 is about 9199.0845740215. The cubic root of 84623157 is about 439.0322342169.

The spelling of 84623157 in words is "eighty-four million, six hundred twenty-three thousand, one hundred fifty-seven".