70949523 has 4 divisors (see below), whose sum is σ = 94599368. Its totient is φ = 47299680.

The previous prime is 70949521. The next prime is 70949533. The reversal of 70949523 is 32594907.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 70949523 - 2¹ = 70949521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70949521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11824918 + ... + 11824923.

It is an arithmetic number, because the mean of its divisors is an integer number (23649842).

Almost surely, 2^70949523 is an apocalyptic number.

70949523 is a deficient number, since it is larger than the sum of its proper divisors (23649845).

70949523 is a wasteful number, since it uses less digits than its factorization.

70949523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23649844.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 70949523 is about 8423.1539817339. The cubic root of 70949523 is about 413.9836220737.

The spelling of 70949523 in words is "seventy million, nine hundred forty-nine thousand, five hundred twenty-three".