70407331 has 8 divisors (see below), whose sum is σ = 76669200. Its totient is φ = 64401120.

The previous prime is 70407329. The next prime is 70407343. The reversal of 70407331 is 13370407.

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 70407331 - 2¹ = 70407329 is a prime.

It is a super-2 number, since 2×70407331² = 9914384517087122, 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 = 70407296 and 70407305.

It is not an unprimeable number, because it can be changed into a prime (70407031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63340 + ... + 64441.

It is an arithmetic number, because the mean of its divisors is an integer number (9583650).

Almost surely, 2^70407331 is an apocalyptic number.

70407331 is a deficient number, since it is larger than the sum of its proper divisors (6261869).

70407331 is a wasteful number, since it uses less digits than its factorization.

70407331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127829.

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 70407331 is about 8390.9076386289. The cubic root of 70407331 is about 412.9263783471.

Adding to 70407331 its reverse (13370407), we get a palindrome (83777738).

The spelling of 70407331 in words is "seventy million, four hundred seven thousand, three hundred thirty-one".