3900951 has 6 divisors (see below), whose sum is σ = 5634720. Its totient is φ = 2600628.

The previous prime is 3900943. The next prime is 3900989. The reversal of 3900951 is 1590093.

It is not a de Polignac number, because 3900951 - 2³ = 3900943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3900931) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 216711 + ... + 216728.

It is an arithmetic number, because the mean of its divisors is an integer number (939120).

Almost surely, 2^3900951 is an apocalyptic number.

3900951 is a deficient number, since it is larger than the sum of its proper divisors (1733769).

3900951 is a wasteful number, since it uses less digits than its factorization.

3900951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433445 (or 433442 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 3900951 is about 1975.0825299212. The cubic root of 3900951 is about 157.4188849134.

It can be divided in two parts, 39009 and 51, that added together give a triangular number (39060 = T₂₇₉).

The spelling of 3900951 in words is "three million, nine hundred thousand, nine hundred fifty-one".