70731249 has 8 divisors (see below), whose sum is σ = 94402272. Its totient is φ = 47107200.

The previous prime is 70731229. The next prime is 70731251. The reversal of 70731249 is 94213707.

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

It is not a de Polignac number, because 70731249 - 2⁵ = 70731217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70731229) 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, 8064 + ... + 14369.

It is an arithmetic number, because the mean of its divisors is an integer number (11800284).

Almost surely, 2^70731249 is an apocalyptic number.

It is an amenable number.

70731249 is a deficient number, since it is larger than the sum of its proper divisors (23671023).

70731249 is a wasteful number, since it uses less digits than its factorization.

70731249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23487.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 70731249 is about 8410.1872155143. The cubic root of 70731249 is about 413.5586500600.

The spelling of 70731249 in words is "seventy million, seven hundred thirty-one thousand, two hundred forty-nine".