70343231 has 8 divisors (see below), whose sum is σ = 80693280. Its totient is φ = 60068448.

The previous prime is 70343219. The next prime is 70343261. The reversal of 70343231 is 13234307.

It is a happy number.

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 70343231 - 2¹⁸ = 70081087 is a prime.

It is a super-2 number, since 2×70343231² = 9896340295038722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70343197 and 70343206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70343261) 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, 16796 + ... + 20561.

It is an arithmetic number, because the mean of its divisors is an integer number (10086660).

Almost surely, 2^70343231 is an apocalyptic number.

70343231 is a deficient number, since it is larger than the sum of its proper divisors (10350049).

70343231 is a wasteful number, since it uses less digits than its factorization.

70343231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37633.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 70343231 is about 8387.0871582451. The cubic root of 70343231 is about 412.8010286284.

Adding to 70343231 its reverse (13234307), we get a palindrome (83577538).

It can be divided in two parts, 703 and 43231, that added together give a palindrome (43934).

The spelling of 70343231 in words is "seventy million, three hundred forty-three thousand, two hundred thirty-one".