7997242 has 16 divisors (see below), whose sum is σ = 13856832. Its totient is φ = 3421120.

The previous prime is 7997239. The next prime is 7997251. The reversal of 7997242 is 2427997.

It is a d-powerful number, because it can be written as 7⁵ + 9⁵ + 9⁵ + 7⁸ + 2⁷ + 4⁴ + 2²¹ .

It is a junction number, because it is equal to n+sod(n) for n = 7997195 and 7997204.

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, 10318 + ... + 11065.

It is an arithmetic number, because the mean of its divisors is an integer number (866052).

Almost surely, 2^7997242 is an apocalyptic number.

7997242 is a deficient number, since it is larger than the sum of its proper divisors (5859590).

7997242 is a wasteful number, since it uses less digits than its factorization.

7997242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21413.

The product of its digits is 63504, while the sum is 40.

The square root of 7997242 is about 2827.9395325926. The cubic root of 7997242 is about 199.9770140250.

The spelling of 7997242 in words is "seven million, nine hundred ninety-seven thousand, two hundred forty-two".