3731901 has 4 divisors (see below), whose sum is σ = 4975872. Its totient is φ = 2487932.

The previous prime is 3731887. The next prime is 3731909. The reversal of 3731901 is 1091373.

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 3731901 - 2⁵ = 3731869 is a prime.

It is a D-number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3731909) 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, 621981 + ... + 621986.

It is an arithmetic number, because the mean of its divisors is an integer number (1243968).

Almost surely, 2^3731901 is an apocalyptic number.

It is an amenable number.

3731901 is a deficient number, since it is larger than the sum of its proper divisors (1243971).

3731901 is a wasteful number, since it uses less digits than its factorization.

3731901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243970.

The product of its (nonzero) digits is 567, while the sum is 24.

The square root of 3731901 is about 1931.8128791371. The cubic root of 3731901 is about 155.1112763205. Note that the first 3 decimals are identical.

The spelling of 3731901 in words is "three million, seven hundred thirty-one thousand, nine hundred one".