3991462670 has 16 divisors (see below), whose sum is σ = 7737297120. Its totient is φ = 1473770784.

The previous prime is 3991462637. The next prime is 3991462679. The reversal of 3991462670 is 762641993.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3991462679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15351650 + ... + 15351909.

It is an arithmetic number, because the mean of its divisors is an integer number (483581070).

Almost surely, 2^3991462670 is an apocalyptic number.

3991462670 is a deficient number, since it is larger than the sum of its proper divisors (3745834450).

3991462670 is a wasteful number, since it uses less digits than its factorization.

3991462670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30703579.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 3991462670 is about 63178.0236316395. The cubic root of 3991462670 is about 1586.2709003281.

The spelling of 3991462670 in words is "three billion, nine hundred ninety-one million, four hundred sixty-two thousand, six hundred seventy".