70672287 has 16 divisors (see below), whose sum is σ = 107824640. Its totient is φ = 40334112.

The previous prime is 70672279. The next prime is 70672289. The reversal of 70672287 is 78227607.

It is not a de Polignac number, because 70672287 - 2³ = 70672279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70672289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21414 + ... + 24492.

It is an arithmetic number, because the mean of its divisors is an integer number (6739040).

Almost surely, 2^70672287 is an apocalyptic number.

70672287 is a deficient number, since it is larger than the sum of its proper divisors (37152353).

70672287 is a wasteful number, since it uses less digits than its factorization.

70672287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4182.

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 70672287 is about 8406.6810930355. The cubic root of 70672287 is about 413.4437031107.

The spelling of 70672287 in words is "seventy million, six hundred seventy-two thousand, two hundred eighty-seven".