65263961 has 8 divisors (see below), whose sum is σ = 75810624. Its totient is φ = 55023120.

The previous prime is 65263951. The next prime is 65263987. The reversal of 65263961 is 16936256.

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-65263961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65263931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75995 + ... + 76848.

It is an arithmetic number, because the mean of its divisors is an integer number (9476328).

Almost surely, 2^65263961 is an apocalyptic number.

65263961 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

65263961 is a deficient number, since it is larger than the sum of its proper divisors (10546663).

65263961 is a wasteful number, since it uses less digits than its factorization.

65263961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152911.

The product of its digits is 58320, while the sum is 38.

The square root of 65263961 is about 8078.6113286876. The cubic root of 65263961 is about 402.6161047716.

The spelling of 65263961 in words is "sixty-five million, two hundred sixty-three thousand, nine hundred sixty-one".