70500691 has 4 divisors (see below), whose sum is σ = 70974000. Its totient is φ = 70027384.

The previous prime is 70500671. The next prime is 70500701. The reversal of 70500691 is 19600507.

It is a happy number.

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 70500691 - 2⁹ = 70500179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70500631) 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, 236431 + ... + 236728.

It is an arithmetic number, because the mean of its divisors is an integer number (17743500).

Almost surely, 2^70500691 is an apocalyptic number.

70500691 is a deficient number, since it is larger than the sum of its proper divisors (473309).

70500691 is a wasteful number, since it uses less digits than its factorization.

70500691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473308.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 70500691 is about 8396.4689602237. The cubic root of 70500691 is about 413.1088109586.

The spelling of 70500691 in words is "seventy million, five hundred thousand, six hundred ninety-one".