1070399217 has 32 divisors (see below), whose sum is σ = 1496309760. Its totient is φ = 679858560.

The previous prime is 1070399201. The next prime is 1070399227. The reversal of 1070399217 is 7129930701.

It is not a de Polignac number, because 1070399217 - 2⁴ = 1070399201 is a prime.

It is a super-2 number, since 2×1070399217² = 2291508967508426178, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1070399227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2616909 + ... + 2617317.

It is an arithmetic number, because the mean of its divisors is an integer number (46759680).

Almost surely, 2^1070399217 is an apocalyptic number.

It is an amenable number.

1070399217 is a deficient number, since it is larger than the sum of its proper divisors (425910543).

1070399217 is a wasteful number, since it uses less digits than its factorization.

1070399217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813.

The product of its (nonzero) digits is 23814, while the sum is 39.

The square root of 1070399217 is about 32716.9561084157. The cubic root of 1070399217 is about 1022.9363093142.

The spelling of 1070399217 in words is "one billion, seventy million, three hundred ninety-nine thousand, two hundred seventeen".