70666737 has 8 divisors (see below), whose sum is σ = 94964736. Its totient is φ = 46739952.

The previous prime is 70666733. The next prime is 70666769. The reversal of 70666737 is 73766607.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70666737 - 2² = 70666733 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70666733) 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 7 ways as a sum of consecutive naturals, for example, 92358 + ... + 93119.

It is an arithmetic number, because the mean of its divisors is an integer number (11870592).

Almost surely, 2^70666737 is an apocalyptic number.

It is an amenable number.

70666737 is a deficient number, since it is larger than the sum of its proper divisors (24297999).

70666737 is a wasteful number, since it uses less digits than its factorization.

70666737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185607.

The product of its (nonzero) digits is 222264, while the sum is 42.

The square root of 70666737 is about 8406.3509919584. The cubic root of 70666737 is about 413.4328800441.

The spelling of 70666737 in words is "seventy million, six hundred sixty-six thousand, seven hundred thirty-seven".