64674941 has 4 divisors (see below), whose sum is σ = 64791612. Its totient is φ = 64558272.

The previous prime is 64674937. The next prime is 64674943. The reversal of 64674941 is 14947646.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16080100 + 48594841 = 4010^2 + 6971^2 .

It is a cyclic number.

It is not a de Polignac number, because 64674941 - 2² = 64674937 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 (64674943) 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, 57500 + ... + 58613.

It is an arithmetic number, because the mean of its divisors is an integer number (16197903).

Almost surely, 2^64674941 is an apocalyptic number.

It is an amenable number.

64674941 is a deficient number, since it is larger than the sum of its proper divisors (116671).

64674941 is a wasteful number, since it uses less digits than its factorization.

64674941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116670.

The product of its digits is 145152, while the sum is 41.

The square root of 64674941 is about 8042.0731779809. The cubic root of 64674941 is about 401.4012128581.

The spelling of 64674941 in words is "sixty-four million, six hundred seventy-four thousand, nine hundred forty-one".