721484097 has 8 divisors (see below), whose sum is σ = 1018565856. Its totient is φ = 452695872.

The previous prime is 721484089. The next prime is 721484167. The reversal of 721484097 is 790484127.

It is a happy number.

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

It is not a de Polignac number, because 721484097 - 2³ = 721484089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (721484047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7073323 + ... + 7073424.

It is an arithmetic number, because the mean of its divisors is an integer number (127320732).

Almost surely, 2^721484097 is an apocalyptic number.

It is an amenable number.

721484097 is a deficient number, since it is larger than the sum of its proper divisors (297081759).

721484097 is a wasteful number, since it uses less digits than its factorization.

721484097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14146767.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 721484097 is about 26860.4560087873. The cubic root of 721484097 is about 896.8963451350.

It can be divided in two parts, 72148 and 4097, that added together give a triangular number (76245 = T₃₉₀).

The spelling of 721484097 in words is "seven hundred twenty-one million, four hundred eighty-four thousand, ninety-seven".