70389346 has 8 divisors (see below), whose sum is σ = 105829164. Its totient is φ = 35112960.

The previous prime is 70389343. The next prime is 70389349. The reversal of 70389346 is 64398307.

It is an interprime number because it is at equal distance from previous prime (70389343) and next prime (70389349).

It can be written as a sum of positive squares in 2 ways, for example, as 69906321 + 483025 = 8361^2 + 695^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 70389299 and 70389308.

It is not an unprimeable number, because it can be changed into a prime (70389343) 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, 39775 + ... + 41506.

Almost surely, 2^70389346 is an apocalyptic number.

70389346 is a deficient number, since it is larger than the sum of its proper divisors (35439818).

70389346 is a wasteful number, since it uses less digits than its factorization.

70389346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81716.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 70389346 is about 8389.8358744376. The cubic root of 70389346 is about 412.8912157523.

It can be divided in two parts, 7038 and 9346, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 70389346 in words is "seventy million, three hundred eighty-nine thousand, three hundred forty-six".