720623498 has 24 divisors (see below), whose sum is σ = 1286664192. Its totient is φ = 301654584.

The previous prime is 720623473. The next prime is 720623509. The reversal of 720623498 is 894326027.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81290 + ... + 89717.

It is an arithmetic number, because the mean of its divisors is an integer number (53611008).

Almost surely, 2^720623498 is an apocalyptic number.

720623498 is a deficient number, since it is larger than the sum of its proper divisors (566040694).

720623498 is a wasteful number, since it uses less digits than its factorization.

720623498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171066 (or 171059 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 720623498 is about 26844.4314150999. The cubic root of 720623498 is about 896.5395919722.

The spelling of 720623498 in words is "seven hundred twenty million, six hundred twenty-three thousand, four hundred ninety-eight".