7899402 has 48 divisors (see below), whose sum is σ = 19092672. Its totient is φ = 2134080.

The previous prime is 7899391. The next prime is 7899413. The reversal of 7899402 is 2049987.

It is an interprime number because it is at equal distance from previous prime (7899391) and next prime (7899413).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14902 + ... + 15422.

It is an arithmetic number, because the mean of its divisors is an integer number (397764).

Almost surely, 2^7899402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7899402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9546336).

7899402 is an abundant number, since it is smaller than the sum of its proper divisors (11193270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7899402 is a wasteful number, since it uses less digits than its factorization.

7899402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 7899402 is about 2810.5874830718. The cubic root of 7899402 is about 199.1581447036.

The spelling of 7899402 in words is "seven million, eight hundred ninety-nine thousand, four hundred two".