65426957 has 4 divisors (see below), whose sum is σ = 67537536. Its totient is φ = 63316380.

The previous prime is 65426947. The next prime is 65426981. The reversal of 65426957 is 75962456.

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 a cyclic number.

It is not a de Polignac number, because 65426957 - 2¹⁰ = 65425933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65426947) 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, 1055243 + ... + 1055304.

It is an arithmetic number, because the mean of its divisors is an integer number (16884384).

Almost surely, 2^65426957 is an apocalyptic number.

It is an amenable number.

65426957 is a deficient number, since it is larger than the sum of its proper divisors (2110579).

65426957 is a wasteful number, since it uses less digits than its factorization.

65426957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110578.

The product of its digits is 453600, while the sum is 44.

The square root of 65426957 is about 8088.6931577357. The cubic root of 65426957 is about 402.9510025052.

The spelling of 65426957 in words is "sixty-five million, four hundred twenty-six thousand, nine hundred fifty-seven".