70880749 has 2 divisors, whose sum is σ = 70880750. Its totient is φ = 70880748.

The previous prime is 70880741. The next prime is 70880753. The reversal of 70880749 is 94708807.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37124649 + 33756100 = 6093^2 + 5810^2 .

It is a cyclic number.

It is not a de Polignac number, because 70880749 - 2³ = 70880741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70880741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35440374 + 35440375.

It is an arithmetic number, because the mean of its divisors is an integer number (35440375).

Almost surely, 2^70880749 is an apocalyptic number.

It is an amenable number.

70880749 is a deficient number, since it is larger than the sum of its proper divisors (1).

70880749 is an equidigital number, since it uses as much as digits as its factorization.

70880749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 70880749 is about 8419.0705544021. The cubic root of 70880749 is about 413.8498156115.

The spelling of 70880749 in words is "seventy million, eight hundred eighty thousand, seven hundred forty-nine".