70642117 has 8 divisors (see below), whose sum is σ = 86944256. Its totient is φ = 55892592.

The previous prime is 70642111. The next prime is 70642129. The reversal of 70642117 is 71124607.

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

It is not a de Polignac number, because 70642117 - 2¹⁹ = 70117829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70642111) 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, 388053 + ... + 388234.

It is an arithmetic number, because the mean of its divisors is an integer number (10868032).

Almost surely, 2^70642117 is an apocalyptic number.

It is an amenable number.

70642117 is a deficient number, since it is larger than the sum of its proper divisors (16302139).

70642117 is a wasteful number, since it uses less digits than its factorization.

70642117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776307.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 70642117 is about 8404.8864953668. The cubic root of 70642117 is about 413.3848616965.

The spelling of 70642117 in words is "seventy million, six hundred forty-two thousand, one hundred seventeen".