70823653 has 2 divisors, whose sum is σ = 70823654. Its totient is φ = 70823652.

The previous prime is 70823639. The next prime is 70823729. The reversal of 70823653 is 35632807.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42276004 + 28547649 = 6502^2 + 5343^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70823653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70823603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35411826 + 35411827.

It is an arithmetic number, because the mean of its divisors is an integer number (35411827).

Almost surely, 2^70823653 is an apocalyptic number.

It is an amenable number.

70823653 is a deficient number, since it is larger than the sum of its proper divisors (1).

70823653 is an equidigital number, since it uses as much as digits as its factorization.

70823653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 70823653 is about 8415.6789981558. The cubic root of 70823653 is about 413.7386640560.

The spelling of 70823653 in words is "seventy million, eight hundred twenty-three thousand, six hundred fifty-three".