70766737 has 2 divisors, whose sum is σ = 70766738. Its totient is φ = 70766736.

The previous prime is 70766723. The next prime is 70766741. The reversal of 70766737 is 73766707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69239041 + 1527696 = 8321^2 + 1236^2 .

It is a cyclic number.

It is not a de Polignac number, because 70766737 - 2¹⁵ = 70733969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70766693 and 70766702.

It is not a weakly prime, because it can be changed into another prime (70766747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35383368 + 35383369.

It is an arithmetic number, because the mean of its divisors is an integer number (35383369).

Almost surely, 2^70766737 is an apocalyptic number.

It is an amenable number.

70766737 is a deficient number, since it is larger than the sum of its proper divisors (1).

70766737 is an equidigital number, since it uses as much as digits as its factorization.

70766737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259308, while the sum is 43.

The square root of 70766737 is about 8412.2967731768. The cubic root of 70766737 is about 413.6278034434.

The spelling of 70766737 in words is "seventy million, seven hundred sixty-six thousand, seven hundred thirty-seven".