84709157 has 16 divisors (see below), whose sum is σ = 94418688. Its totient is φ = 75496320.

The previous prime is 84709151. The next prime is 84709187. The reversal of 84709157 is 75190748.

It is a cyclic number.

It is not a de Polignac number, because 84709157 - 2⁸ = 84708901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84709151) 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, 54128 + ... + 55670.

It is an arithmetic number, because the mean of its divisors is an integer number (5901168).

Almost surely, 2^84709157 is an apocalyptic number.

It is an amenable number.

84709157 is a deficient number, since it is larger than the sum of its proper divisors (9709531).

84709157 is a wasteful number, since it uses less digits than its factorization.

84709157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 84709157 is about 9203.7577651740. The cubic root of 84709157 is about 439.1809090018.

The spelling of 84709157 in words is "eighty-four million, seven hundred nine thousand, one hundred fifty-seven".