70668583 has 2 divisors, whose sum is σ = 70668584. Its totient is φ = 70668582.

The previous prime is 70668569. The next prime is 70668593. The reversal of 70668583 is 38586607.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70668583 - 2⁹ = 70668071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70668503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35334291 + 35334292.

It is an arithmetic number, because the mean of its divisors is an integer number (35334292).

Almost surely, 2^70668583 is an apocalyptic number.

70668583 is a deficient number, since it is larger than the sum of its proper divisors (1).

70668583 is an equidigital number, since it uses as much as digits as its factorization.

70668583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 70668583 is about 8406.4607891788. The cubic root of 70668583 is about 413.4364799954.

The spelling of 70668583 in words is "seventy million, six hundred sixty-eight thousand, five hundred eighty-three".