20713498 has 8 divisors (see below), whose sum is σ = 33460308. Its totient is φ = 9560064.

The previous prime is 20713489. The next prime is 20713529. The reversal of 20713498 is 89431702.

It can be written as a sum of positive squares in 2 ways, for example, as 17867529 + 2845969 = 4227^2 + 1687^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398311 + ... + 398362.

Almost surely, 2^20713498 is an apocalyptic number.

20713498 is a deficient number, since it is larger than the sum of its proper divisors (12746810).

20713498 is a wasteful number, since it uses less digits than its factorization.

20713498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796688.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 20713498 is about 4551.2084109608. The cubic root of 20713498 is about 274.6320058560.

The spelling of 20713498 in words is "twenty million, seven hundred thirteen thousand, four hundred ninety-eight".