3897902222 has 32 divisors (see below), whose sum is σ = 6248586240. Its totient is φ = 1817251200.

The previous prime is 3897902221. The next prime is 3897902287. The reversal of 3897902222 is 2222097983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3897902221) 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, 2499479 + ... + 2501037.

It is an arithmetic number, because the mean of its divisors is an integer number (195268320).

Almost surely, 2^3897902222 is an apocalyptic number.

3897902222 is a deficient number, since it is larger than the sum of its proper divisors (2350684018).

3897902222 is a wasteful number, since it uses less digits than its factorization.

3897902222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 3897902222 is about 62433.1820589020. The cubic root of 3897902222 is about 1573.7786411970.

The spelling of 3897902222 in words is "three billion, eight hundred ninety-seven million, nine hundred two thousand, two hundred twenty-two".