70598621 has 2 divisors, whose sum is σ = 70598622. Its totient is φ = 70598620.

The previous prime is 70598617. The next prime is 70598657. The reversal of 70598621 is 12689507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55279225 + 15319396 = 7435^2 + 3914^2 .

It is an emirp because it is prime and its reverse (12689507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70598621 - 2² = 70598617 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70598681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35299310 + 35299311.

It is an arithmetic number, because the mean of its divisors is an integer number (35299311).

Almost surely, 2^70598621 is an apocalyptic number.

It is an amenable number.

70598621 is a deficient number, since it is larger than the sum of its proper divisors (1).

70598621 is an equidigital number, since it uses as much as digits as its factorization.

70598621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 70598621 is about 8402.2985545623. The cubic root of 70598621 is about 413.3000007084.

The spelling of 70598621 in words is "seventy million, five hundred ninety-eight thousand, six hundred twenty-one".