9902931401 has 4 divisors (see below), whose sum is σ = 10803197904. Its totient is φ = 9002664900.

The previous prime is 9902931343. The next prime is 9902931403. The reversal of 9902931401 is 1041392099.

9902931401 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9902931401 - 2¹⁴ = 9902915017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9902931403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450133235 + ... + 450133256.

It is an arithmetic number, because the mean of its divisors is an integer number (2700799476).

Almost surely, 2^9902931401 is an apocalyptic number.

It is an amenable number.

9902931401 is a deficient number, since it is larger than the sum of its proper divisors (900266503).

9902931401 is a wasteful number, since it uses less digits than its factorization.

9902931401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900266502.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 9902931401 is about 99513.4734646520. The cubic root of 9902931401 is about 2147.4410804188.

The spelling of 9902931401 in words is "nine billion, nine hundred two million, nine hundred thirty-one thousand, four hundred one".