43373213 has 8 divisors (see below), whose sum is σ = 47972568. Its totient is φ = 38954304.

The previous prime is 43373207. The next prime is 43373233. The reversal of 43373213 is 31237334.

It can be written as a sum of positive squares in 4 ways, for example, as 17749369 + 25623844 = 4213^2 + 5062^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 43373213 - 2⁶ = 43373149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43373233) 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, 44606 + ... + 45567.

It is an arithmetic number, because the mean of its divisors is an integer number (5996571).

Almost surely, 2^43373213 is an apocalyptic number.

It is an amenable number.

43373213 is a deficient number, since it is larger than the sum of its proper divisors (4599355).

43373213 is a wasteful number, since it uses less digits than its factorization.

43373213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90223.

The product of its digits is 4536, while the sum is 26.

The square root of 43373213 is about 6585.8342675776. The cubic root of 43373213 is about 351.3504642064.

The spelling of 43373213 in words is "forty-three million, three hundred seventy-three thousand, two hundred thirteen".