37668461 has 4 divisors (see below), whose sum is σ = 37722300. Its totient is φ = 37614624.

The previous prime is 37668443. The next prime is 37668487. The reversal of 37668461 is 16486673.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19307236 + 18361225 = 4394^2 + 4285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37668461 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 (37668401) 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, 25856 + ... + 27273.

It is an arithmetic number, because the mean of its divisors is an integer number (9430575).

Almost surely, 2^37668461 is an apocalyptic number.

It is an amenable number.

37668461 is a deficient number, since it is larger than the sum of its proper divisors (53839).

37668461 is an equidigital number, since it uses as much as digits as its factorization.

37668461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53838.

The product of its digits is 145152, while the sum is 41.

The square root of 37668461 is about 6137.4637269804. The cubic root of 37668461 is about 335.2169412370.

The spelling of 37668461 in words is "thirty-seven million, six hundred sixty-eight thousand, four hundred sixty-one".