732726989 has 4 divisors (see below), whose sum is σ = 732850140. Its totient is φ = 732603840.

The previous prime is 732726931. The next prime is 732726991. The reversal of 732726989 is 989627237.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 989627237 = 59 ⋅16773343.

It can be written as a sum of positive squares in 2 ways, for example, as 111471364 + 621255625 = 10558^2 + 24925^2 .

It is a cyclic number.

It is not a de Polignac number, because 732726989 - 2⁸ = 732726733 is a prime.

It is a super-2 number, since 2×732726989² = 1073777680818012242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 732726989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (732726289) 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, 52172 + ... + 64709.

It is an arithmetic number, because the mean of its divisors is an integer number (183212535).

Almost surely, 2^732726989 is an apocalyptic number.

It is an amenable number.

732726989 is a deficient number, since it is larger than the sum of its proper divisors (123151).

732726989 is a wasteful number, since it uses less digits than its factorization.

732726989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123150.

The product of its digits is 2286144, while the sum is 53.

The square root of 732726989 is about 27068.9303261137. The cubic root of 732726989 is about 901.5311339950.

The spelling of 732726989 in words is "seven hundred thirty-two million, seven hundred twenty-six thousand, nine hundred eighty-nine".