23197090 has 32 divisors (see below), whose sum is σ = 48700800. Its totient is φ = 7952112.

The previous prime is 23197067. The next prime is 23197117. The reversal of 23197090 is 9079132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49 + ... + 6811.

It is an arithmetic number, because the mean of its divisors is an integer number (1521900).

Almost surely, 2^23197090 is an apocalyptic number.

23197090 is an abundant number, since it is smaller than the sum of its proper divisors (25503710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23197090 is an equidigital number, since it uses as much as digits as its factorization.

23197090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6791 (or 6777 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 23197090 is about 4816.3357441109. The cubic root of 23197090 is about 285.1967042587.

It can be divided in two parts, 2319 and 7090, that added together give a square (9409 = 97²).

The spelling of 23197090 in words is "twenty-three million, one hundred ninety-seven thousand, ninety".