3970990 has 8 divisors (see below), whose sum is σ = 7147800. Its totient is φ = 1588392.

The previous prime is 3970949. The next prime is 3970991. The reversal of 3970990 is 990793.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 14.

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 3 ways as a sum of consecutive naturals, for example, 198540 + ... + 198559.

It is an arithmetic number, because the mean of its divisors is an integer number (893475).

Almost surely, 2^3970990 is an apocalyptic number.

3970990 is a deficient number, since it is larger than the sum of its proper divisors (3176810).

3970990 is a wasteful number, since it uses less digits than its factorization.

3970990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397106.

The product of its (nonzero) digits is 15309, while the sum is 37.

The square root of 3970990 is about 1992.7343024096. The cubic root of 3970990 is about 158.3554195106.

The spelling of 3970990 in words is "three million, nine hundred seventy thousand, nine hundred ninety".