89697015 has 24 divisors (see below), whose sum is σ = 164621808. Its totient is φ = 45024000.

The previous prime is 89697001. The next prime is 89697017. The reversal of 89697015 is 51079698.

It is not a de Polignac number, because 89697015 - 2⁵ = 89696983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89697017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57861 + ... + 59390.

It is an arithmetic number, because the mean of its divisors is an integer number (6859242).

Almost surely, 2^89697015 is an apocalyptic number.

89697015 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

89697015 is a deficient number, since it is larger than the sum of its proper divisors (74924793).

89697015 is a wasteful number, since it uses less digits than its factorization.

89697015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117279 (or 117276 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 89697015 is about 9470.8508065538. The cubic root of 89697015 is about 447.6370209708.

The spelling of 89697015 in words is "eighty-nine million, six hundred ninety-seven thousand, fifteen".