712416021 has 8 divisors (see below), whose sum is σ = 950383200. Its totient is φ = 474696432.

The previous prime is 712416017. The next prime is 712416073. The reversal of 712416021 is 120614217.

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

It is not a de Polignac number, because 712416021 - 2² = 712416017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 712415982 and 712416000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712415021) 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, 55075 + ... + 66768.

It is an arithmetic number, because the mean of its divisors is an integer number (118797900).

Almost surely, 2^712416021 is an apocalyptic number.

It is an amenable number.

712416021 is a deficient number, since it is larger than the sum of its proper divisors (237967179).

712416021 is a wasteful number, since it uses less digits than its factorization.

712416021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123795.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 712416021 is about 26691.1225129255. The cubic root of 712416021 is about 893.1229017079.

The spelling of 712416021 in words is "seven hundred twelve million, four hundred sixteen thousand, twenty-one".