70355399 has 4 divisors (see below), whose sum is σ = 72624960. Its totient is φ = 68085840.

The previous prime is 70355377. The next prime is 70355407. The reversal of 70355399 is 99355307.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70355399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70355359) 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, 1134734 + ... + 1134795.

It is an arithmetic number, because the mean of its divisors is an integer number (18156240).

Almost surely, 2^70355399 is an apocalyptic number.

70355399 is a deficient number, since it is larger than the sum of its proper divisors (2269561).

70355399 is a wasteful number, since it uses less digits than its factorization.

70355399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269560.

The product of its (nonzero) digits is 127575, while the sum is 41.

The square root of 70355399 is about 8387.8125277095. The cubic root of 70355399 is about 412.8248294180.

The spelling of 70355399 in words is "seventy million, three hundred fifty-five thousand, three hundred ninety-nine".