3970998 has 32 divisors (see below), whose sum is σ = 8901120. Its totient is φ = 1312200.

The previous prime is 3970997. The next prime is 3971027. The reversal of 3970998 is 8990793.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3970991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7911 + ... + 8397.

It is an arithmetic number, because the mean of its divisors is an integer number (278160).

Almost surely, 2^3970998 is an apocalyptic number.

3970998 is an abundant number, since it is smaller than the sum of its proper divisors (4930122).

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

3970998 is a wasteful number, since it uses less digits than its factorization.

3970998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 3970998 is about 1992.7363097008. The cubic root of 3970998 is about 158.3555258520.

The spelling of 3970998 in words is "three million, nine hundred seventy thousand, nine hundred ninety-eight".