70266621 has 4 divisors (see below), whose sum is σ = 93688832. Its totient is φ = 46844412.

The previous prime is 70266607. The next prime is 70266643. The reversal of 70266621 is 12666207.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 70266621 - 2⁶ = 70266557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70266671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11711101 + ... + 11711106.

It is an arithmetic number, because the mean of its divisors is an integer number (23422208).

Almost surely, 2^70266621 is an apocalyptic number.

It is an amenable number.

70266621 is a deficient number, since it is larger than the sum of its proper divisors (23422211).

70266621 is a wasteful number, since it uses less digits than its factorization.

70266621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23422210.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 70266621 is about 8382.5187742110. The cubic root of 70266621 is about 412.6511152489.

The spelling of 70266621 in words is "seventy million, two hundred sixty-six thousand, six hundred twenty-one".