70454639 has 2 divisors, whose sum is σ = 70454640. Its totient is φ = 70454638.

The previous prime is 70454627. The next prime is 70454651. The reversal of 70454639 is 93645407.

It is a balanced prime because it is at equal distance from previous prime (70454627) and next prime (70454651).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70454639 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70454609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35227319 + 35227320.

It is an arithmetic number, because the mean of its divisors is an integer number (35227320).

Almost surely, 2^70454639 is an apocalyptic number.

70454639 is a deficient number, since it is larger than the sum of its proper divisors (1).

70454639 is an equidigital number, since it uses as much as digits as its factorization.

70454639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 70454639 is about 8393.7261689907. The cubic root of 70454639 is about 413.0188419547.

The spelling of 70454639 in words is "seventy million, four hundred fifty-four thousand, six hundred thirty-nine".