37820481 has 4 divisors (see below), whose sum is σ = 50427312. Its totient is φ = 25213652.

The previous prime is 37820479. The next prime is 37820501. The reversal of 37820481 is 18402873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 37820481 - 2¹ = 37820479 is a prime.

It is a super-2 number, since 2×37820481² = 2860777566142722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (37820411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6303411 + ... + 6303416.

It is an arithmetic number, because the mean of its divisors is an integer number (12606828).

Almost surely, 2^37820481 is an apocalyptic number.

It is an amenable number.

37820481 is a deficient number, since it is larger than the sum of its proper divisors (12606831).

37820481 is a wasteful number, since it uses less digits than its factorization.

37820481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12606830.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 37820481 is about 6149.8358514679. The cubic root of 37820481 is about 335.6672850884.

The spelling of 37820481 in words is "thirty-seven million, eight hundred twenty thousand, four hundred eighty-one".