70090726 has 4 divisors (see below), whose sum is σ = 105136092. Its totient is φ = 35045362.

The previous prime is 70090723. The next prime is 70090763. The reversal of 70090726 is 62709007.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62709007 = 43 ⋅1458349.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70090723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17522680 + ... + 17522683.

It is an arithmetic number, because the mean of its divisors is an integer number (26284023).

Almost surely, 2^70090726 is an apocalyptic number.

70090726 is a deficient number, since it is larger than the sum of its proper divisors (35045366).

70090726 is a wasteful number, since it uses less digits than its factorization.

70090726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35045365.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 70090726 is about 8372.0204252020. The cubic root of 70090726 is about 412.3065044130.

The spelling of 70090726 in words is "seventy million, ninety thousand, seven hundred twenty-six".