64961037 has 6 divisors (see below), whose sum is σ = 93832622. Its totient is φ = 43307352.

The previous prime is 64961009. The next prime is 64961053. The reversal of 64961037 is 73016946.

64961037 is a `hidden beast` number, since 6 + 4 + 9 + 610 + 37 = 666.

It can be written as a sum of positive squares in only one way, i.e., 38118276 + 26842761 = 6174^2 + 5181^2 .

It is not a de Polignac number, because 64961037 - 2¹⁰ = 64960013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64960992 and 64961010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64961087) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3608938 + ... + 3608955.

Almost surely, 2^64961037 is an apocalyptic number.

It is an amenable number.

64961037 is a deficient number, since it is larger than the sum of its proper divisors (28871585).

64961037 is a wasteful number, since it uses less digits than its factorization.

64961037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7217899 (or 7217896 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 64961037 is about 8059.8410033945. The cubic root of 64961037 is about 401.9922215767.

The spelling of 64961037 in words is "sixty-four million, nine hundred sixty-one thousand, thirty-seven".