70811345 has 8 divisors (see below), whose sum is σ = 92698560. Its totient is φ = 51499120.

The previous prime is 70811333. The next prime is 70811357. The reversal of 70811345 is 54311807.

It is an interprime number because it is at equal distance from previous prime (70811333) and next prime (70811357).

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

It is not a de Polignac number, because 70811345 - 2¹² = 70807249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 643685 + ... + 643794.

It is an arithmetic number, because the mean of its divisors is an integer number (11587320).

Almost surely, 2^70811345 is an apocalyptic number.

It is an amenable number.

70811345 is a deficient number, since it is larger than the sum of its proper divisors (21887215).

70811345 is a wasteful number, since it uses less digits than its factorization.

70811345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287495.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 70811345 is about 8414.9477122559. The cubic root of 70811345 is about 413.7146956487.

The spelling of 70811345 in words is "seventy million, eight hundred eleven thousand, three hundred forty-five".