70830667 has 4 divisors (see below), whose sum is σ = 71186800. Its totient is φ = 70474536.

The previous prime is 70830649. The next prime is 70830671. The reversal of 70830667 is 76603807.

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

It is a cyclic number.

It is not a de Polignac number, because 70830667 - 2¹⁵ = 70797899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70830607) 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, 177768 + ... + 178165.

It is an arithmetic number, because the mean of its divisors is an integer number (17796700).

Almost surely, 2^70830667 is an apocalyptic number.

70830667 is a deficient number, since it is larger than the sum of its proper divisors (356133).

70830667 is a wasteful number, since it uses less digits than its factorization.

70830667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356132.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 70830667 is about 8416.0957100071. The cubic root of 70830667 is about 413.7523217681.

It can be divided in two parts, 708 and 30667, that added together give a triangular number (31375 = T₂₅₀).

The spelling of 70830667 in words is "seventy million, eight hundred thirty thousand, six hundred sixty-seven".