720913701 has 16 divisors (see below), whose sum is σ = 986263488. Its totient is φ = 468124800.

The previous prime is 720913693. The next prime is 720913717. The reversal of 720913701 is 107319027.

It is not a de Polignac number, because 720913701 - 2³ = 720913693 is a prime.

It is a super-3 number, since 3×720913701³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720913201) 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, 76870 + ... + 85736.

It is an arithmetic number, because the mean of its divisors is an integer number (61641468).

Almost surely, 2^720913701 is an apocalyptic number.

It is an amenable number.

720913701 is a deficient number, since it is larger than the sum of its proper divisors (265349787).

720913701 is a wasteful number, since it uses less digits than its factorization.

720913701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9572.

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 720913701 is about 26849.8361447514. The cubic root of 720913701 is about 896.6599246018.

It can be divided in two parts, 7209 and 13701, that added together give a triangular number (20910 = T₂₀₄).

The spelling of 720913701 in words is "seven hundred twenty million, nine hundred thirteen thousand, seven hundred one".