70539089 has 2 divisors, whose sum is σ = 70539090. Its totient is φ = 70539088.

The previous prime is 70539071. The next prime is 70539109. The reversal of 70539089 is 98093507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57456400 + 13082689 = 7580^2 + 3617^2 .

It is a cyclic number.

It is not a de Polignac number, because 70539089 - 2¹² = 70534993 is a prime.

It is not a weakly prime, because it can be changed into another prime (70539289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35269544 + 35269545.

It is an arithmetic number, because the mean of its divisors is an integer number (35269545).

Almost surely, 2^70539089 is an apocalyptic number.

It is an amenable number.

70539089 is a deficient number, since it is larger than the sum of its proper divisors (1).

70539089 is an equidigital number, since it uses as much as digits as its factorization.

70539089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 70539089 is about 8398.7552053861. The cubic root of 70539089 is about 413.1837968579.

The spelling of 70539089 in words is "seventy million, five hundred thirty-nine thousand, eighty-nine".