70622643 has 16 divisors (see below), whose sum is σ = 115894016. Its totient is φ = 37251360.

The previous prime is 70622633. The next prime is 70622647. The reversal of 70622643 is 34622607.

It is not a de Polignac number, because 70622643 - 2¹⁰ = 70621619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70622643.

It is not an unprimeable number, because it can be changed into a prime (70622647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129073 + ... + 129618.

It is an arithmetic number, because the mean of its divisors is an integer number (7243376).

Almost surely, 2^70622643 is an apocalyptic number.

70622643 is a deficient number, since it is larger than the sum of its proper divisors (45271373).

70622643 is a wasteful number, since it uses less digits than its factorization.

70622643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258714.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 70622643 is about 8403.7279227733. The cubic root of 70622643 is about 413.3468720996.

The spelling of 70622643 in words is "seventy million, six hundred twenty-two thousand, six hundred forty-three".