65404745 has 32 divisors (see below), whose sum is σ = 96076800. Its totient is φ = 41743296.

The previous prime is 65404741. The next prime is 65404753. The reversal of 65404745 is 54740456.

It is not a de Polignac number, because 65404745 - 2² = 65404741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (65404741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38402 + ... + 40068.

It is an arithmetic number, because the mean of its divisors is an integer number (3002400).

Almost surely, 2^65404745 is an apocalyptic number.

It is an amenable number.

65404745 is a deficient number, since it is larger than the sum of its proper divisors (30672055).

65404745 is a wasteful number, since it uses less digits than its factorization.

65404745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757.

The product of its (nonzero) digits is 67200, while the sum is 35.

The square root of 65404745 is about 8087.3200134532. The cubic root of 65404745 is about 402.9053976499.

The spelling of 65404745 in words is "sixty-five million, four hundred four thousand, seven hundred forty-five".