64724901 has 8 divisors (see below), whose sum is σ = 86394240. Its totient is φ = 43102752.

The previous prime is 64724893. The next prime is 64724903. The reversal of 64724901 is 10942746.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64724901 - 2³ = 64724893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64724903) 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, 8461 + ... + 14178.

It is an arithmetic number, because the mean of its divisors is an integer number (10799280).

Almost surely, 2^64724901 is an apocalyptic number.

It is an amenable number.

64724901 is a deficient number, since it is larger than the sum of its proper divisors (21669339).

64724901 is a wasteful number, since it uses less digits than its factorization.

64724901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23595.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 64724901 is about 8045.1787425762. The cubic root of 64724901 is about 401.5045441883.

The spelling of 64724901 in words is "sixty-four million, seven hundred twenty-four thousand, nine hundred one".