724782979 has 2 divisors, whose sum is σ = 724782980. Its totient is φ = 724782978.

The previous prime is 724782977. The next prime is 724783009. The reversal of 724782979 is 979287427.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 724782979 - 2¹ = 724782977 is a prime.

It is a super-2 number, since 2×724782979² = 1050620733296228882, which contains 22 as substring.

Together with 724782977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (724782977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362391489 + 362391490.

It is an arithmetic number, because the mean of its divisors is an integer number (362391490).

Almost surely, 2^724782979 is an apocalyptic number.

724782979 is a deficient number, since it is larger than the sum of its proper divisors (1).

724782979 is an equidigital number, since it uses as much as digits as its factorization.

724782979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 55.

The square root of 724782979 is about 26921.7937552460. The cubic root of 724782979 is about 898.2612433808.

It can be divided in two parts, 72478 and 2979, that added together give a palindrome (75457).

The spelling of 724782979 in words is "seven hundred twenty-four million, seven hundred eighty-two thousand, nine hundred seventy-nine".