70737109 has 2 divisors, whose sum is σ = 70737110. Its totient is φ = 70737108.

The previous prime is 70737101. The next prime is 70737113. The reversal of 70737109 is 90173707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52272900 + 18464209 = 7230^2 + 4297^2 .

It is a cyclic number.

It is not a de Polignac number, because 70737109 - 2³ = 70737101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70737101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35368554 + 35368555.

It is an arithmetic number, because the mean of its divisors is an integer number (35368555).

Almost surely, 2^70737109 is an apocalyptic number.

It is an amenable number.

70737109 is a deficient number, since it is larger than the sum of its proper divisors (1).

70737109 is an equidigital number, since it uses as much as digits as its factorization.

70737109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9261, while the sum is 34.

The square root of 70737109 is about 8410.5355953114. The cubic root of 70737109 is about 413.5700706924.

The spelling of 70737109 in words is "seventy million, seven hundred thirty-seven thousand, one hundred nine".