37868661 has 8 divisors (see below), whose sum is σ = 56101760. Its totient is φ = 25245756.

The previous prime is 37868651. The next prime is 37868669. The reversal of 37868661 is 16686873.

It is not a de Polignac number, because 37868661 - 2⁵ = 37868629 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 (37868669) 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, 701245 + ... + 701298.

It is an arithmetic number, because the mean of its divisors is an integer number (7012720).

Almost surely, 2^37868661 is an apocalyptic number.

It is an amenable number.

37868661 is a deficient number, since it is larger than the sum of its proper divisors (18233099).

37868661 is a wasteful number, since it uses less digits than its factorization.

37868661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402552 (or 1402546 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 37868661 is about 6153.7517824495. The cubic root of 37868661 is about 335.8097615702.

The spelling of 37868661 in words is "thirty-seven million, eight hundred sixty-eight thousand, six hundred sixty-one".