720874901 has 8 divisors (see below), whose sum is σ = 752929344. Its totient is φ = 688879840.

The previous prime is 720874883. The next prime is 720874937. The reversal of 720874901 is 109478027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-720874901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720874201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10946 + ... + 39516.

It is an arithmetic number, because the mean of its divisors is an integer number (94116168).

Almost surely, 2^720874901 is an apocalyptic number.

It is an amenable number.

720874901 is a deficient number, since it is larger than the sum of its proper divisors (32054443).

720874901 is a wasteful number, since it uses less digits than its factorization.

720874901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29691.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 720874901 is about 26849.1135980315. The cubic root of 720874901 is about 896.6438380581.

The spelling of 720874901 in words is "seven hundred twenty million, eight hundred seventy-four thousand, nine hundred one".