7691998 has 16 divisors (see below), whose sum is σ = 12320640. Its totient is φ = 3591000.

The previous prime is 7691977. The next prime is 7692001. The reversal of 7691998 is 8991967.

It is a super-3 number, since 3×7691998³ (a number of 22 digits) contains 333 as substring.

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, 1273 + ... + 4123.

It is an arithmetic number, because the mean of its divisors is an integer number (770040).

Almost surely, 2^7691998 is an apocalyptic number.

7691998 is a deficient number, since it is larger than the sum of its proper divisors (4628642).

7691998 is a wasteful number, since it uses less digits than its factorization.

7691998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943.

The product of its digits is 244944, while the sum is 49.

The square root of 7691998 is about 2773.4451499894. The cubic root of 7691998 is about 197.3996542004.

The spelling of 7691998 in words is "seven million, six hundred ninety-one thousand, nine hundred ninety-eight".