70239667 has 4 divisors (see below), whose sum is σ = 71734176. Its totient is φ = 68745160.

The previous prime is 70239649. The next prime is 70239679. The reversal of 70239667 is 76693207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76693207 = 199 ⋅385393.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70239667 is a prime.

It is a super-2 number, since 2×70239667² = 9867221640541778, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70239467) 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, 747184 + ... + 747277.

It is an arithmetic number, because the mean of its divisors is an integer number (17933544).

Almost surely, 2^70239667 is an apocalyptic number.

70239667 is a deficient number, since it is larger than the sum of its proper divisors (1494509).

70239667 is a wasteful number, since it uses less digits than its factorization.

70239667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494508.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 70239667 is about 8380.9108693507. The cubic root of 70239667 is about 412.5983447181.

The spelling of 70239667 in words is "seventy million, two hundred thirty-nine thousand, six hundred sixty-seven".