70649999 has 8 divisors (see below), whose sum is σ = 84992640. Its totient is φ = 57369816.

The previous prime is 70649981. The next prime is 70650049. The reversal of 70649999 is 99994607.

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

It is not a de Polignac number, because 70649999 - 2⁸ = 70649743 is a prime.

It is a Duffinian number.

70649999 is a modest number, since divided by 9999 gives 7064 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 70649999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70649939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265469 + ... + 265734.

It is an arithmetic number, because the mean of its divisors is an integer number (10624080).

Almost surely, 2^70649999 is an apocalyptic number.

70649999 is a deficient number, since it is larger than the sum of its proper divisors (14342641).

70649999 is a wasteful number, since it uses less digits than its factorization.

70649999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531229.

The product of its (nonzero) digits is 1102248, while the sum is 53.

The square root of 70649999 is about 8405.3553761873. The cubic root of 70649999 is about 413.4002358031.

It can be divided in two parts, 706 and 49999, that added together give a palindrome (50705).

The spelling of 70649999 in words is "seventy million, six hundred forty-nine thousand, nine hundred ninety-nine".