70091953 has 4 divisors (see below), whose sum is σ = 70147620. Its totient is φ = 70036288.

The previous prime is 70091951. The next prime is 70091977. The reversal of 70091953 is 35919007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35919007 = 3361 ⋅10687.

It can be written as a sum of positive squares in 2 ways, for example, as 58721569 + 11370384 = 7663^2 + 3372^2 .

It is a cyclic number.

It is not a de Polignac number, because 70091953 - 2¹ = 70091951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70091951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25900 + ... + 28477.

It is an arithmetic number, because the mean of its divisors is an integer number (17536905).

Almost surely, 2^70091953 is an apocalyptic number.

It is an amenable number.

70091953 is a deficient number, since it is larger than the sum of its proper divisors (55667).

70091953 is a wasteful number, since it uses less digits than its factorization.

70091953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55666.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 70091953 is about 8372.0937046834. The cubic root of 70091953 is about 412.3089103287.

The spelling of 70091953 in words is "seventy million, ninety-one thousand, nine hundred fifty-three".