7997662 has 4 divisors (see below), whose sum is σ = 11996496. Its totient is φ = 3998830.

The previous prime is 7997623. The next prime is 7997663. The reversal of 7997662 is 2667997.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2667997 = 17 ⋅156941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7997663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1999414 + ... + 1999417.

It is an arithmetic number, because the mean of its divisors is an integer number (2999124).

Almost surely, 2^7997662 is an apocalyptic number.

7997662 is a deficient number, since it is larger than the sum of its proper divisors (3998834).

7997662 is a wasteful number, since it uses less digits than its factorization.

7997662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3998833.

The product of its digits is 285768, while the sum is 46.

The square root of 7997662 is about 2828.0137906312. The cubic root of 7997662 is about 199.9805147684.

The spelling of 7997662 in words is "seven million, nine hundred ninety-seven thousand, six hundred sixty-two".