70117819 has 8 divisors (see below), whose sum is σ = 71350272. Its totient is φ = 68894760.

The previous prime is 70117813. The next prime is 70117829. The reversal of 70117819 is 91871107.

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 70117819 - 2³ = 70117811 is a prime.

It is a super-2 number, since 2×70117819² = 9833017082633522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70117811) 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, 13642 + ... + 18064.

It is an arithmetic number, because the mean of its divisors is an integer number (8918784).

Almost surely, 2^70117819 is an apocalyptic number.

70117819 is a deficient number, since it is larger than the sum of its proper divisors (1232453).

70117819 is a wasteful number, since it uses less digits than its factorization.

70117819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4697.

The product of its (nonzero) digits is 3528, while the sum is 34.

The square root of 70117819 is about 8373.6383370671. The cubic root of 70117819 is about 412.3596221447.

The spelling of 70117819 in words is "seventy million, one hundred seventeen thousand, eight hundred nineteen".