70992547 has 2 divisors, whose sum is σ = 70992548. Its totient is φ = 70992546.

The previous prime is 70992487. The next prime is 70992563. The reversal of 70992547 is 74529907.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70992547 - 2¹⁹ = 70468259 is a prime.

It is not a weakly prime, because it can be changed into another prime (70992577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35496273 + 35496274.

It is an arithmetic number, because the mean of its divisors is an integer number (35496274).

Almost surely, 2^70992547 is an apocalyptic number.

70992547 is a deficient number, since it is larger than the sum of its proper divisors (1).

70992547 is an equidigital number, since it uses as much as digits as its factorization.

70992547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 70992547 is about 8425.7075073848. The cubic root of 70992547 is about 414.0672854612.

The spelling of 70992547 in words is "seventy million, nine hundred ninety-two thousand, five hundred forty-seven".