84415157 has 6 divisors (see below), whose sum is σ = 89092278. Its totient is φ = 79971912.

The previous prime is 84415151. The next prime is 84415193. The reversal of 84415157 is 75151448.

It can be written as a sum of positive squares in only one way, i.e., 76720081 + 7695076 = 8759^2 + 2774^2 .

It is not a de Polignac number, because 84415157 - 2¹⁶ = 84349621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84415151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 116558 + ... + 117279.

It is an arithmetic number, because the mean of its divisors is an integer number (14848713).

Almost surely, 2^84415157 is an apocalyptic number.

It is an amenable number.

84415157 is a deficient number, since it is larger than the sum of its proper divisors (4677121).

84415157 is a wasteful number, since it uses less digits than its factorization.

84415157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233875 (or 233856 counting only the distinct ones).

The product of its digits is 22400, while the sum is 35.

The square root of 84415157 is about 9187.7721456292. The cubic root of 84415157 is about 438.6722317880.

The spelling of 84415157 in words is "eighty-four million, four hundred fifteen thousand, one hundred fifty-seven".