70654789 has 2 divisors, whose sum is σ = 70654790. Its totient is φ = 70654788.

The previous prime is 70654763. The next prime is 70654813. The reversal of 70654789 is 98745607.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43956900 + 26697889 = 6630^2 + 5167^2 .

It is a cyclic number.

It is not a de Polignac number, because 70654789 - 2⁹ = 70654277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70654709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35327394 + 35327395.

It is an arithmetic number, because the mean of its divisors is an integer number (35327395).

Almost surely, 2^70654789 is an apocalyptic number.

It is an amenable number.

70654789 is a deficient number, since it is larger than the sum of its proper divisors (1).

70654789 is an equidigital number, since it uses as much as digits as its factorization.

70654789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 70654789 is about 8405.6403087451. The cubic root of 70654789 is about 413.4095783009.

The spelling of 70654789 in words is "seventy million, six hundred fifty-four thousand, seven hundred eighty-nine".