70249249 has 8 divisors (see below), whose sum is σ = 81301760. Its totient is φ = 59450976.

The previous prime is 70249217. The next prime is 70249261. The reversal of 70249249 is 94294207.

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

It is not a de Polignac number, because 70249249 - 2⁵ = 70249217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70247249) 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, 62964 + ... + 64069.

It is an arithmetic number, because the mean of its divisors is an integer number (10162720).

Almost surely, 2^70249249 is an apocalyptic number.

70249249 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

70249249 is a deficient number, since it is larger than the sum of its proper divisors (11052511).

70249249 is a wasteful number, since it uses less digits than its factorization.

70249249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127119.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 70249249 is about 8381.4825060964. The cubic root of 70249249 is about 412.6171059004.

The spelling of 70249249 in words is "seventy million, two hundred forty-nine thousand, two hundred forty-nine".