23219653 has 12 divisors (see below), whose sum is σ = 25086880. Its totient is φ = 21431520.

The previous prime is 23219639. The next prime is 23219657. The reversal of 23219653 is 35691232.

It is a de Polignac number, because none of the positive numbers 2^k-23219653 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23219657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31576 + ... + 32302.

Almost surely, 2^23219653 is an apocalyptic number.

It is an amenable number.

23219653 is a deficient number, since it is larger than the sum of its proper divisors (1867227).

23219653 is an equidigital number, since it uses as much as digits as its factorization.

23219653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828 (or 787 counting only the distinct ones).

The product of its digits is 9720, while the sum is 31.

The square root of 23219653 is about 4818.6775156676. The cubic root of 23219653 is about 285.2891412560.

The spelling of 23219653 in words is "twenty-three million, two hundred nineteen thousand, six hundred fifty-three".