70630669 has 8 divisors (see below), whose sum is σ = 73115648. Its totient is φ = 68176080.

The previous prime is 70630649. The next prime is 70630673. The reversal of 70630669 is 96603607.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70630669 is a prime.

It is a super-2 number, since 2×70630669² = 9977382806775122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70630649) 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, 2817 + ... + 12214.

It is an arithmetic number, because the mean of its divisors is an integer number (9139456).

Almost surely, 2^70630669 is an apocalyptic number.

It is an amenable number.

70630669 is a deficient number, since it is larger than the sum of its proper divisors (2484979).

70630669 is a wasteful number, since it uses less digits than its factorization.

70630669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15195.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 70630669 is about 8404.2054353758. The cubic root of 70630669 is about 413.3625299500.

It can be divided in two parts, 706 and 30669, that added together give a triangular number (31375 = T₂₅₀).

The spelling of 70630669 in words is "seventy million, six hundred thirty thousand, six hundred sixty-nine".