102724479 has 24 divisors (see below), whose sum is σ = 174322512. Its totient is φ = 57467520.

The previous prime is 102724477. The next prime is 102724481. The reversal of 102724479 is 974427201.

It is an interprime number because it is at equal distance from previous prime (102724477) and next prime (102724481).

It is not a de Polignac number, because 102724479 - 2¹ = 102724477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102724471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38622 + ... + 41195.

It is an arithmetic number, because the mean of its divisors is an integer number (7263438).

Almost surely, 2^102724479 is an apocalyptic number.

102724479 is a deficient number, since it is larger than the sum of its proper divisors (71598033).

102724479 is a wasteful number, since it uses less digits than its factorization.

102724479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79847 (or 79844 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 102724479 is about 10135.3085300843. The cubic root of 102724479 is about 468.3364745536.

The spelling of 102724479 in words is "one hundred two million, seven hundred twenty-four thousand, four hundred seventy-nine".