70626427 has 4 divisors (see below), whose sum is σ = 70901496. Its totient is φ = 70351360.

The previous prime is 70626389. The next prime is 70626461. The reversal of 70626427 is 72462607.

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 70626427 - 2⁷ = 70626299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70626392 and 70626401.

It is not an unprimeable number, because it can be changed into a prime (70626467) 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, 137149 + ... + 137662.

It is an arithmetic number, because the mean of its divisors is an integer number (17725374).

Almost surely, 2^70626427 is an apocalyptic number.

70626427 is a deficient number, since it is larger than the sum of its proper divisors (275069).

70626427 is a wasteful number, since it uses less digits than its factorization.

70626427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275068.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 70626427 is about 8403.9530579365. The cubic root of 70626427 is about 413.3542544186.

The spelling of 70626427 in words is "seventy million, six hundred twenty-six thousand, four hundred twenty-seven".