70620427 has 2 divisors, whose sum is σ = 70620428. Its totient is φ = 70620426.

The previous prime is 70620421. The next prime is 70620527. The reversal of 70620427 is 72402607.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70620427 - 2¹⁹ = 70096139 is a prime.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 70620395 and 70620404.

It is not a weakly prime, because it can be changed into another prime (70620421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35310213 + 35310214.

It is an arithmetic number, because the mean of its divisors is an integer number (35310214).

Almost surely, 2^70620427 is an apocalyptic number.

70620427 is a deficient number, since it is larger than the sum of its proper divisors (1).

70620427 is an equidigital number, since it uses as much as digits as its factorization.

70620427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 70620427 is about 8403.5960754905. The cubic root of 70620427 is about 413.3425487164.

The spelling of 70620427 in words is "seventy million, six hundred twenty thousand, four hundred twenty-seven".