70420895 has 4 divisors (see below), whose sum is σ = 84505080. Its totient is φ = 56336712.

The previous prime is 70420841. The next prime is 70420907. The reversal of 70420895 is 59802407.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 70420895 - 2¹⁶ = 70355359 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 7042085 + ... + 7042094.

It is an arithmetic number, because the mean of its divisors is an integer number (21126270).

Almost surely, 2^70420895 is an apocalyptic number.

70420895 is a deficient number, since it is larger than the sum of its proper divisors (14084185).

70420895 is a wasteful number, since it uses less digits than its factorization.

70420895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14084184.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 70420895 is about 8391.7158555328. The cubic root of 70420895 is about 412.9528934541.

The spelling of 70420895 in words is "seventy million, four hundred twenty thousand, eight hundred ninety-five".