712229381 has 4 divisors (see below), whose sum is σ = 714660492. Its totient is φ = 709798272.

The previous prime is 712229369. The next prime is 712229429. The reversal of 712229381 is 183922217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 183922217 = 491 ⋅374587.

It can be written as a sum of positive squares in 2 ways, for example, as 637562500 + 74666881 = 25250^2 + 8641^2 .

It is a cyclic number.

It is not a de Polignac number, because 712229381 - 2¹⁸ = 711967237 is a prime.

It is a super-2 number, since 2×712229381² = 1014541382319286322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712229311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1215116 + ... + 1215701.

It is an arithmetic number, because the mean of its divisors is an integer number (178665123).

Almost surely, 2^712229381 is an apocalyptic number.

It is an amenable number.

712229381 is a deficient number, since it is larger than the sum of its proper divisors (2431111).

712229381 is a wasteful number, since it uses less digits than its factorization.

712229381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431110.

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

The square root of 712229381 is about 26687.6259903349. The cubic root of 712229381 is about 893.0449009273.

The spelling of 712229381 in words is "seven hundred twelve million, two hundred twenty-nine thousand, three hundred eighty-one".