6412990 has 8 divisors (see below), whose sum is σ = 11543400. Its totient is φ = 2565192.

The previous prime is 6412981. The next prime is 6412993. The reversal of 6412990 is 992146.

It is a happy number.

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

It is a super-2 number, since 2×6412990² = 82252881480200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6412993) 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, 320640 + ... + 320659.

It is an arithmetic number, because the mean of its divisors is an integer number (1442925).

Almost surely, 2^6412990 is an apocalyptic number.

6412990 is a deficient number, since it is larger than the sum of its proper divisors (5130410).

6412990 is a wasteful number, since it uses less digits than its factorization.

6412990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641306.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 6412990 is about 2532.3882008886. The cubic root of 6412990 is about 185.7890814530.

The spelling of 6412990 in words is "six million, four hundred twelve thousand, nine hundred ninety".