8725073737 has 4 divisors (see below), whose sum is σ = 8726785300. Its totient is φ = 8723362176.

The previous prime is 8725073729. The next prime is 8725073741. The reversal of 8725073737 is 7373705278.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1144062976 + 7581010761 = 33824^2 + 87069^2 .

It is a cyclic number.

It is not a de Polignac number, because 8725073737 - 2³ = 8725073729 is a prime.

It is a super-2 number, since 2×8725073737² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8725074737) 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, 848112 + ... + 858337.

It is an arithmetic number, because the mean of its divisors is an integer number (2181696325).

Almost surely, 2^8725073737 is an apocalyptic number.

It is an amenable number.

8725073737 is a deficient number, since it is larger than the sum of its proper divisors (1711563).

8725073737 is a wasteful number, since it uses less digits than its factorization.

8725073737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711562.

The product of its (nonzero) digits is 1728720, while the sum is 49.

The square root of 8725073737 is about 93408.1031656248. The cubic root of 8725073737 is about 2058.6840604984.

The spelling of 8725073737 in words is "eight billion, seven hundred twenty-five million, seventy-three thousand, seven hundred thirty-seven".