70828379 has 8 divisors (see below), whose sum is σ = 72179520. Its totient is φ = 69482376.

The previous prime is 70828369. The next prime is 70828421. The reversal of 70828379 is 97382807.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 70828379 - 2⁴ = 70828363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70828349) 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, 37004 + ... + 38870.

It is an arithmetic number, because the mean of its divisors is an integer number (9022440).

Almost surely, 2^70828379 is an apocalyptic number.

70828379 is a deficient number, since it is larger than the sum of its proper divisors (1351141).

70828379 is a wasteful number, since it uses less digits than its factorization.

70828379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 70828379 is about 8415.9597788963. The cubic root of 70828379 is about 413.7478666569.

The spelling of 70828379 in words is "seventy million, eight hundred twenty-eight thousand, three hundred seventy-nine".