70541917 has 2 divisors, whose sum is σ = 70541918. Its totient is φ = 70541916.

The previous prime is 70541909. The next prime is 70541923. The reversal of 70541917 is 71914507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69405561 + 1136356 = 8331^2 + 1066^2 .

It is a cyclic number.

It is not a de Polignac number, because 70541917 - 2³ = 70541909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70541117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35270958 + 35270959.

It is an arithmetic number, because the mean of its divisors is an integer number (35270959).

Almost surely, 2^70541917 is an apocalyptic number.

It is an amenable number.

70541917 is a deficient number, since it is larger than the sum of its proper divisors (1).

70541917 is an equidigital number, since it uses as much as digits as its factorization.

70541917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 70541917 is about 8398.9235619810. The cubic root of 70541917 is about 413.1893184686.

The spelling of 70541917 in words is "seventy million, five hundred forty-one thousand, nine hundred seventeen".