3917916 has 24 divisors (see below), whose sum is σ = 10157840. Its totient is φ = 1305936.

The previous prime is 3917909. The next prime is 3917923. The reversal of 3917916 is 6197193.

It is an interprime number because it is at equal distance from previous prime (3917909) and next prime (3917923).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18031 + ... + 18246.

Almost surely, 2^3917916 is an apocalyptic number.

3917916 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3917916 is an abundant number, since it is smaller than the sum of its proper divisors (6239924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3917916 is a wasteful number, since it uses less digits than its factorization.

3917916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36290 (or 36282 counting only the distinct ones).

The product of its digits is 10206, while the sum is 36.

The square root of 3917916 is about 1979.3726278799. The cubic root of 3917916 is about 157.6467566355.

It can be divided in two parts, 39 and 17916, that added together give a triangular number (17955 = T₁₈₉).

The spelling of 3917916 in words is "three million, nine hundred seventeen thousand, nine hundred sixteen".