7672978 has 4 divisors (see below), whose sum is σ = 11509470. Its totient is φ = 3836488.

The previous prime is 7672943. The next prime is 7672981. The reversal of 7672978 is 8792767.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8792767 = 449 ⋅19583.

It can be written as a sum of positive squares in only one way, i.e., 7634169 + 38809 = 2763^2 + 197^2 .

It is a super-3 number, since 3×7672978³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1918243 + ... + 1918246.

Almost surely, 2^7672978 is an apocalyptic number.

7672978 is a deficient number, since it is larger than the sum of its proper divisors (3836492).

7672978 is a wasteful number, since it uses less digits than its factorization.

7672978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3836491.

The product of its digits is 296352, while the sum is 46.

The square root of 7672978 is about 2770.0140793866. The cubic root of 7672978 is about 197.2368165649.

The spelling of 7672978 in words is "seven million, six hundred seventy-two thousand, nine hundred seventy-eight".