23501097 has 10 divisors (see below), whose sum is σ = 35106698. Its totient is φ = 15667344.

The previous prime is 23501087. The next prime is 23501111. The reversal of 23501097 is 79010532.

It can be written as a sum of positive squares in only one way, i.e., 14356521 + 9144576 = 3789^2 + 3024^2 .

It is not a de Polignac number, because 23501097 - 2⁶ = 23501033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23501097.

It is not an unprimeable number, because it can be changed into a prime (23501017) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 144988 + ... + 145149.

Almost surely, 2^23501097 is an apocalyptic number.

23501097 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

23501097 is a deficient number, since it is larger than the sum of its proper divisors (11605601).

23501097 is an equidigital number, since it uses as much as digits as its factorization.

23501097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290149 (or 290140 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 23501097 is about 4847.7930030066. The cubic root of 23501097 is about 286.4371727041.

The spelling of 23501097 in words is "twenty-three million, five hundred one thousand, ninety-seven".