3897297902 has 4 divisors (see below), whose sum is σ = 5845946856. Its totient is φ = 1948648950.

The previous prime is 3897297893. The next prime is 3897297931. The reversal of 3897297902 is 2097927983.

3897297902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974324474 + ... + 974324477.

It is an arithmetic number, because the mean of its divisors is an integer number (1461486714).

Almost surely, 2^3897297902 is an apocalyptic number.

3897297902 is a deficient number, since it is larger than the sum of its proper divisors (1948648954).

3897297902 is a wasteful number, since it uses less digits than its factorization.

3897297902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948648953.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The square root of 3897297902 is about 62428.3421372056. The cubic root of 3897297902 is about 1573.6973055615.

The spelling of 3897297902 in words is "three billion, eight hundred ninety-seven million, two hundred ninety-seven thousand, nine hundred two".