7947398 has 8 divisors (see below), whose sum is σ = 12622392. Its totient is φ = 3739936.

The previous prime is 7947361. The next prime is 7947409. The reversal of 7947398 is 8937497.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7947398² = 126322269940808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116840 + ... + 116907.

It is an arithmetic number, because the mean of its divisors is an integer number (1577799).

Almost surely, 2^7947398 is an apocalyptic number.

7947398 is a deficient number, since it is larger than the sum of its proper divisors (4674994).

7947398 is a wasteful number, since it uses less digits than its factorization.

7947398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233766.

The product of its digits is 381024, while the sum is 47.

The square root of 7947398 is about 2819.1129810634. The cubic root of 7947398 is about 199.5606857214.

Subtracting 7947398 from its reverse (8937497), we obtain a palindrome (990099).

It can be divided in two parts, 794 and 7398, that added together give a 13-th power (8192 = 2¹³).

The spelling of 7947398 in words is "seven million, nine hundred forty-seven thousand, three hundred ninety-eight".