70120849 has 4 divisors (see below), whose sum is σ = 73811440. Its totient is φ = 66430260.

The previous prime is 70120837. The next prime is 70120871. The reversal of 70120849 is 94802107.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70120849 - 2²³ = 61732241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70120849.

It is not an unprimeable number, because it can be changed into a prime (70120829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1845267 + ... + 1845304.

It is an arithmetic number, because the mean of its divisors is an integer number (18452860).

Almost surely, 2^70120849 is an apocalyptic number.

It is an amenable number.

70120849 is a deficient number, since it is larger than the sum of its proper divisors (3690591).

70120849 is a wasteful number, since it uses less digits than its factorization.

70120849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690590.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 70120849 is about 8373.8192600509. The cubic root of 70120849 is about 412.3655618220.

The spelling of 70120849 in words is "seventy million, one hundred twenty thousand, eight hundred forty-nine".