37421001 has 8 divisors (see below), whose sum is σ = 55438560. Its totient is φ = 24947316.

The previous prime is 37420997. The next prime is 37421009. The reversal of 37421001 is 10012473.

It is not a de Polignac number, because 37421001 - 2² = 37420997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (37421009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692955 + ... + 693008.

It is an arithmetic number, because the mean of its divisors is an integer number (6929820).

Almost surely, 2^37421001 is an apocalyptic number.

It is an amenable number.

37421001 is a deficient number, since it is larger than the sum of its proper divisors (18017559).

37421001 is a wasteful number, since it uses less digits than its factorization.

37421001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385972 (or 1385966 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 37421001 is about 6117.2707149512. The cubic root of 37421001 is about 334.4812674261.

Adding to 37421001 its reverse (10012473), we get a palindrome (47433474).

The spelling of 37421001 in words is "thirty-seven million, four hundred twenty-one thousand, one".