70718667 has 16 divisors (see below), whose sum is σ = 96445440. Its totient is φ = 46081152.

The previous prime is 70718663. The next prime is 70718693. The reversal of 70718667 is 76681707.

It is not a de Polignac number, because 70718667 - 2² = 70718663 is a prime.

It is a super-2 number, since 2×70718667² = 10002259724513778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70718663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22963 + ... + 25859.

It is an arithmetic number, because the mean of its divisors is an integer number (6027840).

Almost surely, 2^70718667 is an apocalyptic number.

70718667 is a deficient number, since it is larger than the sum of its proper divisors (25726773).

70718667 is a wasteful number, since it uses less digits than its factorization.

70718667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 70718667 is about 8409.4391608478. The cubic root of 70718667 is about 413.5341267007.

The spelling of 70718667 in words is "seventy million, seven hundred eighteen thousand, six hundred sixty-seven".