64979701 has 8 divisors (see below), whose sum is σ = 66792600. Its totient is φ = 63191040.

The previous prime is 64979671. The next prime is 64979723. The reversal of 64979701 is 10797946.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6380676 + 58599025 = 2526^2 + 7655^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 64979701 - 2⁷ = 64979573 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 (64979741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556 + ... + 11413.

It is an arithmetic number, because the mean of its divisors is an integer number (8349075).

Almost surely, 2^64979701 is an apocalyptic number.

64979701 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

64979701 is a deficient number, since it is larger than the sum of its proper divisors (1812899).

64979701 is a wasteful number, since it uses less digits than its factorization.

64979701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12119.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 64979701 is about 8060.9987594590. The cubic root of 64979701 is about 402.0307167770.

The spelling of 64979701 in words is "sixty-four million, nine hundred seventy-nine thousand, seven hundred one".