9977902 has 12 divisors (see below), whose sum is σ = 16451568. Its totient is φ = 4535300.

The previous prime is 9977899. The next prime is 9977909. The reversal of 9977902 is 2097799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9977909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20374 + ... + 20857.

It is an arithmetic number, because the mean of its divisors is an integer number (1370964).

Almost surely, 2^9977902 is an apocalyptic number.

9977902 is a deficient number, since it is larger than the sum of its proper divisors (6473666).

9977902 is a wasteful number, since it uses less digits than its factorization.

9977902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41255 (or 41244 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 43.

The square root of 9977902 is about 3158.7817271853. The cubic root of 9977902 is about 215.2846563050.

The spelling of 9977902 in words is "nine million, nine hundred seventy-seven thousand, nine hundred two".