64741731 has 4 divisors (see below), whose sum is σ = 86322312. Its totient is φ = 43161152.

The previous prime is 64741687. The next prime is 64741751. The reversal of 64741731 is 13714746.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64741731 - 2⁶ = 64741667 is a prime.

It is a super-2 number, since 2×64741731² = 8382983465752722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64741692 and 64741701.

It is not an unprimeable number, because it can be changed into a prime (64741751) 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, 10790286 + ... + 10790291.

It is an arithmetic number, because the mean of its divisors is an integer number (21580578).

Almost surely, 2^64741731 is an apocalyptic number.

64741731 is a deficient number, since it is larger than the sum of its proper divisors (21580581).

64741731 is a wasteful number, since it uses less digits than its factorization.

64741731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21580580.

The product of its digits is 14112, while the sum is 33.

The square root of 64741731 is about 8046.2246426507. The cubic root of 64741731 is about 401.5393413878.

The spelling of 64741731 in words is "sixty-four million, seven hundred forty-one thousand, seven hundred thirty-one".