37064813 has 4 divisors (see below), whose sum is σ = 38342940. Its totient is φ = 35786688.

The previous prime is 37064789. The next prime is 37064821. The reversal of 37064813 is 31846073.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31846073 = 7 ⋅4549439.

It can be written as a sum of positive squares in 2 ways, for example, as 22829284 + 14235529 = 4778^2 + 3773^2 .

It is a cyclic number.

It is not a de Polignac number, because 37064813 - 2⁸ = 37064557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 37064813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37064843) 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, 639020 + ... + 639077.

It is an arithmetic number, because the mean of its divisors is an integer number (9585735).

Almost surely, 2^37064813 is an apocalyptic number.

It is an amenable number.

37064813 is a deficient number, since it is larger than the sum of its proper divisors (1278127).

37064813 is a wasteful number, since it uses less digits than its factorization.

37064813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278126.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 37064813 is about 6088.0877950306. The cubic root of 37064813 is about 333.4166404003.

The spelling of 37064813 in words is "thirty-seven million, sixty-four thousand, eight hundred thirteen".