64981007 has 48 divisors (see below), whose sum is σ = 87840000. Its totient is φ = 47882016.

The previous prime is 64981001. The next prime is 64981013. The reversal of 64981007 is 70018946.

It is an interprime number because it is at equal distance from previous prime (64981001) and next prime (64981013).

It is not a de Polignac number, because 64981007 - 2⁶ = 64980943 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64981001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1101344 + ... + 1101402.

It is an arithmetic number, because the mean of its divisors is an integer number (1830000).

Almost surely, 2^64981007 is an apocalyptic number.

64981007 is a deficient number, since it is larger than the sum of its proper divisors (22858993).

64981007 is a wasteful number, since it uses less digits than its factorization.

64981007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 64981007 is about 8061.0797663837. The cubic root of 64981007 is about 402.0334101750.

The spelling of 64981007 in words is "sixty-four million, nine hundred eighty-one thousand, seven".