1036700721 has 16 divisors (see below), whose sum is σ = 1755260800. Its totient is φ = 592400304.

The previous prime is 1036700719. The next prime is 1036700737. The reversal of 1036700721 is 1270076301.

It is not a de Polignac number, because 1036700721 - 2¹ = 1036700719 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1036700711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2742406 + ... + 2742783.

It is an arithmetic number, because the mean of its divisors is an integer number (109703800).

Almost surely, 2^1036700721 is an apocalyptic number.

It is an amenable number.

1036700721 is a deficient number, since it is larger than the sum of its proper divisors (718560079).

1036700721 is an equidigital number, since it uses as much as digits as its factorization.

1036700721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5485205 (or 5485199 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 1036700721 is about 32197.8372099742. The cubic root of 1036700721 is about 1012.0868921027.

The spelling of 1036700721 in words is "one billion, thirty-six million, seven hundred thousand, seven hundred twenty-one".