70023405 has 16 divisors (see below), whose sum is σ = 112170240. Its totient is φ = 37301568.

The previous prime is 70023403. The next prime is 70023407. The reversal of 70023405 is 50432007.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70023403) and next prime (70023407).

It is not a de Polignac number, because 70023405 - 2¹ = 70023403 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70023403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13339 + ... + 17831.

It is an arithmetic number, because the mean of its divisors is an integer number (7010640).

Almost surely, 2^70023405 is an apocalyptic number.

It is an amenable number.

70023405 is a deficient number, since it is larger than the sum of its proper divisors (42146835).

70023405 is a wasteful number, since it uses less digits than its factorization.

70023405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5540.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 70023405 is about 8367.9988647227. The cubic root of 70023405 is about 412.1744575684.

The spelling of 70023405 in words is "seventy million, twenty-three thousand, four hundred five".