65620023 has 16 divisors (see below), whose sum is σ = 100429056. Its totient is φ = 37333440.

The previous prime is 65619991. The next prime is 65620043. The reversal of 65620023 is 32002656.

It is not a de Polignac number, because 65620023 - 2⁵ = 65619991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65619975 and 65620002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65620043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1813 + ... + 11598.

It is an arithmetic number, because the mean of its divisors is an integer number (6276816).

Almost surely, 2^65620023 is an apocalyptic number.

65620023 is a deficient number, since it is larger than the sum of its proper divisors (34809033).

65620023 is a wasteful number, since it uses less digits than its factorization.

65620023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13654.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 65620023 is about 8100.6186800762. The cubic root of 65620023 is about 403.3469643793.

Adding to 65620023 its reverse (32002656), we get a palindrome (97622679).

The spelling of 65620023 in words is "sixty-five million, six hundred twenty thousand, twenty-three".