720863246 has 4 divisors (see below), whose sum is σ = 1081294872. Its totient is φ = 360431622.

The previous prime is 720863233. The next prime is 720863261. The reversal of 720863246 is 642368027.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180215810 + ... + 180215813.

It is an arithmetic number, because the mean of its divisors is an integer number (270323718).

Almost surely, 2^720863246 is an apocalyptic number.

720863246 is a deficient number, since it is larger than the sum of its proper divisors (360431626).

720863246 is a wasteful number, since it uses less digits than its factorization.

720863246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360431625.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 720863246 is about 26848.8965508827. The cubic root of 720863246 is about 896.6390057632.

The spelling of 720863246 in words is "seven hundred twenty million, eight hundred sixty-three thousand, two hundred forty-six".