712438019 has 4 divisors (see below), whose sum is σ = 713529696. Its totient is φ = 711346344.

The previous prime is 712437991. The next prime is 712438043. The reversal of 712438019 is 910834217.

712438019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 712438019 - 2⁸ = 712437763 is a prime.

It is a super-2 number, since 2×712438019² = 1015135861833288722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 712438019.

It is not an unprimeable number, because it can be changed into a prime (712498019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 544859 + ... + 546164.

It is an arithmetic number, because the mean of its divisors is an integer number (178382424).

Almost surely, 2^712438019 is an apocalyptic number.

712438019 is a deficient number, since it is larger than the sum of its proper divisors (1091677).

712438019 is a wasteful number, since it uses less digits than its factorization.

712438019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091676.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 712438019 is about 26691.5345943241. The cubic root of 712438019 is about 893.1320942372.

The spelling of 712438019 in words is "seven hundred twelve million, four hundred thirty-eight thousand, nineteen".