7874738 has 4 divisors (see below), whose sum is σ = 11812110. Its totient is φ = 3937368.

The previous prime is 7874677. The next prime is 7874743. The reversal of 7874738 is 8374787.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8374787 = 337 ⋅24851.

It can be written as a sum of positive squares in only one way, i.e., 7823209 + 51529 = 2797^2 + 227^2 .

It is a super-2 number, since 2×7874738² = 124022997137288, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1968683 + ... + 1968686.

Almost surely, 2^7874738 is an apocalyptic number.

7874738 is a deficient number, since it is larger than the sum of its proper divisors (3937372).

7874738 is a wasteful number, since it uses less digits than its factorization.

7874738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3937371.

The product of its digits is 263424, while the sum is 44.

The square root of 7874738 is about 2806.1963580619. The cubic root of 7874738 is about 198.9506539937.

The spelling of 7874738 in words is "seven million, eight hundred seventy-four thousand, seven hundred thirty-eight".