3957390 has 32 divisors (see below), whose sum is σ = 10553760. Its totient is φ = 1055232.

The previous prime is 3957389. The next prime is 3957397. The reversal of 3957390 is 937593.

3957390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3957390² = 31321871224200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3957397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7059 + ... + 7598.

It is an arithmetic number, because the mean of its divisors is an integer number (329805).

Almost surely, 2^3957390 is an apocalyptic number.

3957390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3957390 is an abundant number, since it is smaller than the sum of its proper divisors (6596370).

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

3957390 is a wasteful number, since it uses less digits than its factorization.

3957390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14673 (or 14667 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 36.

The square root of 3957390 is about 1989.3189789473. The cubic root of 3957390 is about 158.1744321489.

The spelling of 3957390 in words is "three million, nine hundred fifty-seven thousand, three hundred ninety".