3897628390 has 16 divisors (see below), whose sum is σ = 7018024032. Its totient is φ = 1558541824.

The previous prime is 3897628381. The next prime is 3897628393. The reversal of 3897628390 is 938267983.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3897628393) 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, 30754 + ... + 93493.

It is an arithmetic number, because the mean of its divisors is an integer number (438626502).

Almost surely, 2^3897628390 is an apocalyptic number.

3897628390 is a deficient number, since it is larger than the sum of its proper divisors (3120395642).

3897628390 is a wasteful number, since it uses less digits than its factorization.

3897628390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127391.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The square root of 3897628390 is about 62430.9890198770. The cubic root of 3897628390 is about 1573.7417870961.

The spelling of 3897628390 in words is "three billion, eight hundred ninety-seven million, six hundred twenty-eight thousand, three hundred ninety".