23021677 has 4 divisors (see below), whose sum is σ = 26310496. Its totient is φ = 19732860.

The previous prime is 23021657. The next prime is 23021693. The reversal of 23021677 is 77612032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23021677 - 2¹⁹ = 22497389 is a prime.

It is a super-2 number, since 2×23021677² = 1059995223784658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23021657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1644399 + ... + 1644412.

It is an arithmetic number, because the mean of its divisors is an integer number (6577624).

Almost surely, 2^23021677 is an apocalyptic number.

It is an amenable number.

23021677 is a deficient number, since it is larger than the sum of its proper divisors (3288819).

23021677 is an equidigital number, since it uses as much as digits as its factorization.

23021677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3288818.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 23021677 is about 4798.0909745439. The cubic root of 23021677 is about 284.4760126922.

The spelling of 23021677 in words is "twenty-three million, twenty-one thousand, six hundred seventy-seven".