23420765 has 8 divisors (see below), whose sum is σ = 28188000. Its totient is φ = 18681232.

The previous prime is 23420759. The next prime is 23420773. The reversal of 23420765 is 56702432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23420765 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5015 + ... + 8484.

It is an arithmetic number, because the mean of its divisors is an integer number (3523500).

Almost surely, 2^23420765 is an apocalyptic number.

It is an amenable number.

23420765 is a deficient number, since it is larger than the sum of its proper divisors (4767235).

23420765 is a wasteful number, since it uses less digits than its factorization.

23420765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13851.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 23420765 is about 4839.5004907532. The cubic root of 23420765 is about 286.1104313791.

It can be divided in two parts, 2342076 and 5, that multiplied together give a triangular number (11710380 = T₄₈₃₉).

The spelling of 23420765 in words is "twenty-three million, four hundred twenty thousand, seven hundred sixty-five".