70347091 has 8 divisors (see below), whose sum is σ = 73808768. Its totient is φ = 66960000.

The previous prime is 70347061. The next prime is 70347181. The reversal of 70347091 is 19074307.

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

It is not a de Polignac number, because 70347091 - 2¹⁵ = 70314323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (70347001) 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, 16710 + ... + 20491.

It is an arithmetic number, because the mean of its divisors is an integer number (9226096).

Almost surely, 2^70347091 is an apocalyptic number.

70347091 is a deficient number, since it is larger than the sum of its proper divisors (3461677).

70347091 is a wasteful number, since it uses less digits than its factorization.

70347091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37293.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 70347091 is about 8387.3172707368. The cubic root of 70347091 is about 412.8085791432.

The spelling of 70347091 in words is "seventy million, three hundred forty-seven thousand, ninety-one".