7945398 has 16 divisors (see below), whose sum is σ = 17656560. Its totient is φ = 2648448.

The previous prime is 7945387. The next prime is 7945423. The reversal of 7945398 is 8935497.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73515 + ... + 73622.

It is an arithmetic number, because the mean of its divisors is an integer number (1103535).

Almost surely, 2^7945398 is an apocalyptic number.

7945398 is an abundant number, since it is smaller than the sum of its proper divisors (9711162).

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

7945398 is a wasteful number, since it uses less digits than its factorization.

7945398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147148 (or 147142 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 7945398 is about 2818.7582372385. The cubic root of 7945398 is about 199.5439441893.

Subtracting 7945398 from its reverse (8935497), we obtain a palindrome (990099).

The spelling of 7945398 in words is "seven million, nine hundred forty-five thousand, three hundred ninety-eight".