724505427 has 12 divisors (see below), whose sum is σ = 1064246040. Its totient is φ = 474816768.

The previous prime is 724505393. The next prime is 724505429.

It is a happy number.

724505427 is a `hidden beast` number, since 72 + 45 + 0 + 542 + 7 = 666.

724505427 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 724505427 - 2¹⁴ = 724489043 is a prime.

It is a super-2 number, since 2×724505427² = 1049816227504904658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 724505391 and 724505400.

It is not an unprimeable number, because it can be changed into a prime (724505429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 681678 + ... + 682739.

It is an arithmetic number, because the mean of its divisors is an integer number (88687170).

Almost surely, 2^724505427 is an apocalyptic number.

724505427 is a deficient number, since it is larger than the sum of its proper divisors (339740613).

724505427 is a wasteful number, since it uses less digits than its factorization.

724505427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364482 (or 1364479 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 724505427 is about 26916.6384788294. The cubic root of 724505427 is about 898.1465671981.

It can be divided in two parts, 72450 and 5427, that added together give a palindrome (77877).

The spelling of 724505427 in words is "seven hundred twenty-four million, five hundred five thousand, four hundred twenty-seven".