572978749 has 4 divisors (see below), whose sum is σ = 654832864. Its totient is φ = 491124636.

The previous prime is 572978689. The next prime is 572978759. The reversal of 572978749 is 947879275.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 572978749 - 2¹⁵ = 572945981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 572978693 and 572978702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572978759) 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, 40927047 + ... + 40927060.

It is an arithmetic number, because the mean of its divisors is an integer number (163708216).

Almost surely, 2^572978749 is an apocalyptic number.

It is an amenable number.

572978749 is a deficient number, since it is larger than the sum of its proper divisors (81854115).

572978749 is an equidigital number, since it uses as much as digits as its factorization.

572978749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81854114.

The product of its digits is 8890560, while the sum is 58.

The square root of 572978749 is about 23936.9745164254. The cubic root of 572978749 is about 830.5762432808.

The spelling of 572978749 in words is "five hundred seventy-two million, nine hundred seventy-eight thousand, seven hundred forty-nine".