70563661 has 8 divisors (see below), whose sum is σ = 80708544. Its totient is φ = 60434880.

The previous prime is 70563653. The next prime is 70563671. The reversal of 70563661 is 16636507.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70563661 - 2³ = 70563653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70563671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7626 + ... + 14116.

It is an arithmetic number, because the mean of its divisors is an integer number (10088568).

Almost surely, 2^70563661 is an apocalyptic number.

It is an amenable number.

70563661 is a deficient number, since it is larger than the sum of its proper divisors (10144883).

70563661 is a wasteful number, since it uses less digits than its factorization.

70563661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8051.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 70563661 is about 8400.2179138401. The cubic root of 70563661 is about 413.2317682439.

The spelling of 70563661 in words is "seventy million, five hundred sixty-three thousand, six hundred sixty-one".