726994474 has 4 divisors (see below), whose sum is σ = 1090491714. Its totient is φ = 363497236.

The previous prime is 726994469. The next prime is 726994501. The reversal of 726994474 is 474499627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 474499627 = 7 ⋅67785661.

It can be written as a sum of positive squares in only one way, i.e., 585978849 + 141015625 = 24207^2 + 11875^2 .

It is a super-3 number, since 3×726994474³ (a number of 28 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, 181748617 + ... + 181748620.

Almost surely, 2^726994474 is an apocalyptic number.

726994474 is a deficient number, since it is larger than the sum of its proper divisors (363497240).

726994474 is a wasteful number, since it uses less digits than its factorization.

726994474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363497239.

The product of its digits is 3048192, while the sum is 52.

The square root of 726994474 is about 26962.8350512330. The cubic root of 726994474 is about 899.1739226640.

The spelling of 726994474 in words is "seven hundred twenty-six million, nine hundred ninety-four thousand, four hundred seventy-four".