70840541 has 2 divisors, whose sum is σ = 70840542. Its totient is φ = 70840540.

The previous prime is 70840501. The next prime is 70840543. The reversal of 70840541 is 14504807.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46977316 + 23863225 = 6854^2 + 4885^2 .

It is a cyclic number.

It is not a de Polignac number, because 70840541 - 2¹⁴ = 70824157 is a prime.

Together with 70840543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70840543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35420270 + 35420271.

It is an arithmetic number, because the mean of its divisors is an integer number (35420271).

Almost surely, 2^70840541 is an apocalyptic number.

It is an amenable number.

70840541 is a deficient number, since it is larger than the sum of its proper divisors (1).

70840541 is an equidigital number, since it uses as much as digits as its factorization.

70840541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 70840541 is about 8416.6823036158. The cubic root of 70840541 is about 413.7715469652.

The spelling of 70840541 in words is "seventy million, eight hundred forty thousand, five hundred forty-one".