37660561 has 8 divisors (see below), whose sum is σ = 39579584. Its totient is φ = 35789040.

The previous prime is 37660549. The next prime is 37660573. The reversal of 37660561 is 16506673.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (37660549) and next prime (37660573).

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 37660561 - 2⁷ = 37660433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37610561) 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, 10245 + ... + 13426.

It is an arithmetic number, because the mean of its divisors is an integer number (4947448).

Almost surely, 2^37660561 is an apocalyptic number.

It is an amenable number.

37660561 is a deficient number, since it is larger than the sum of its proper divisors (1919023).

37660561 is a wasteful number, since it uses less digits than its factorization.

37660561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23751.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 37660561 is about 6136.8201049078. The cubic root of 37660561 is about 335.1935051942.

The spelling of 37660561 in words is "thirty-seven million, six hundred sixty thousand, five hundred sixty-one".