70770047 has 2 divisors, whose sum is σ = 70770048. Its totient is φ = 70770046.

The previous prime is 70770019. The next prime is 70770061. The reversal of 70770047 is 74007707.

It is a strong prime.

It is an emirp because it is prime and its reverse (74007707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70770047 - 2⁶ = 70769983 is a prime.

It is a super-3 number, since 3×70770047³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 70769995 and 70770022.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70770067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35385023 + 35385024.

It is an arithmetic number, because the mean of its divisors is an integer number (35385024).

Almost surely, 2^70770047 is an apocalyptic number.

70770047 is a deficient number, since it is larger than the sum of its proper divisors (1).

70770047 is an equidigital number, since it uses as much as digits as its factorization.

70770047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9604, while the sum is 32.

The square root of 70770047 is about 8412.4935066840. The cubic root of 70770047 is about 413.6342522673.

The spelling of 70770047 in words is "seventy million, seven hundred seventy thousand, forty-seven".