7912738 has 8 divisors (see below), whose sum is σ = 11883420. Its totient is φ = 3951600.

The previous prime is 7912733. The next prime is 7912739. The reversal of 7912738 is 8372197.

It can be written as a sum of positive squares in 2 ways, for example, as 7879249 + 33489 = 2807^2 + 183^2 .

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

It is a super-2 number, since 2×7912738² = 125222845313288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7912697 and 7912706.

It is not an unprimeable number, because it can be changed into a prime (7912733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288 + ... + 3988.

Almost surely, 2^7912738 is an apocalyptic number.

7912738 is a deficient number, since it is larger than the sum of its proper divisors (3970682).

7912738 is a wasteful number, since it uses less digits than its factorization.

7912738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4772.

The product of its digits is 21168, while the sum is 37.

The square root of 7912738 is about 2812.9589403331. The cubic root of 7912738 is about 199.2701565491.

The spelling of 7912738 in words is "seven million, nine hundred twelve thousand, seven hundred thirty-eight".