70426919 has 4 divisors (see below), whose sum is σ = 70816200. Its totient is φ = 70037640.

The previous prime is 70426907. The next prime is 70426927. The reversal of 70426919 is 91962407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91962407 = 73 ⋅1259759.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70426919 is a prime.

It is a super-2 number, since 2×70426919² = 9919901839665122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70426219) 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, 194369 + ... + 194730.

It is an arithmetic number, because the mean of its divisors is an integer number (17704050).

Almost surely, 2^70426919 is an apocalyptic number.

70426919 is a deficient number, since it is larger than the sum of its proper divisors (389281).

70426919 is a wasteful number, since it uses less digits than its factorization.

70426919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389280.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 70426919 is about 8392.0747732608. The cubic root of 70426919 is about 412.9646681663.

The spelling of 70426919 in words is "seventy million, four hundred twenty-six thousand, nine hundred nineteen".