70677641 has 2 divisors, whose sum is σ = 70677642. Its totient is φ = 70677640.

The previous prime is 70677631. The next prime is 70677667. The reversal of 70677641 is 14677607.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53071225 + 17606416 = 7285^2 + 4196^2 .

It is a cyclic number.

It is not a de Polignac number, because 70677641 - 2⁶ = 70677577 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 70677595 and 70677604.

It is not a weakly prime, because it can be changed into another prime (70677601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35338820 + 35338821.

It is an arithmetic number, because the mean of its divisors is an integer number (35338821).

Almost surely, 2^70677641 is an apocalyptic number.

It is an amenable number.

70677641 is a deficient number, since it is larger than the sum of its proper divisors (1).

70677641 is an equidigital number, since it uses as much as digits as its factorization.

70677641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 70677641 is about 8406.9995242060. Note that the first 3 decimals coincide. The cubic root of 70677641 is about 413.4541434204.

The spelling of 70677641 in words is "seventy million, six hundred seventy-seven thousand, six hundred forty-one".