70584091 has 2 divisors, whose sum is σ = 70584092. Its totient is φ = 70584090.

The previous prime is 70584077. The next prime is 70584097. The reversal of 70584091 is 19048507.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70584091 - 2⁷ = 70583963 is a prime.

It is a super-2 number, since 2×70584091² = 9964227804592562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70584097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35292045 + 35292046.

It is an arithmetic number, because the mean of its divisors is an integer number (35292046).

Almost surely, 2^70584091 is an apocalyptic number.

70584091 is a deficient number, since it is larger than the sum of its proper divisors (1).

70584091 is an equidigital number, since it uses as much as digits as its factorization.

70584091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 70584091 is about 8401.4338657160. The cubic root of 70584091 is about 413.2716448144.

The spelling of 70584091 in words is "seventy million, five hundred eighty-four thousand, ninety-one".