70705398 has 8 divisors (see below), whose sum is σ = 141410808. Its totient is φ = 23568464.

The previous prime is 70705387. The next prime is 70705399. The reversal of 70705398 is 89350707.

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

70705398 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70705399) 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, 5892111 + ... + 5892122.

It is an arithmetic number, because the mean of its divisors is an integer number (17676351).

Almost surely, 2^70705398 is an apocalyptic number.

70705398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70705398 is a wasteful number, since it uses less digits than its factorization.

70705398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11784238.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 70705398 is about 8408.6501889423. The cubic root of 70705398 is about 413.5082611701.

The spelling of 70705398 in words is "seventy million, seven hundred five thousand, three hundred ninety-eight".