70742437 has 2 divisors, whose sum is σ = 70742438. Its totient is φ = 70742436.

The previous prime is 70742431. The next prime is 70742447. The reversal of 70742437 is 73424707.

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., 47692836 + 23049601 = 6906^2 + 4801^2 .

It is an emirp because it is prime and its reverse (73424707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70742437 - 2¹¹ = 70740389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70742431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35371218 + 35371219.

It is an arithmetic number, because the mean of its divisors is an integer number (35371219).

Almost surely, 2^70742437 is an apocalyptic number.

It is an amenable number.

70742437 is a deficient number, since it is larger than the sum of its proper divisors (1).

70742437 is an equidigital number, since it uses as much as digits as its factorization.

70742437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 34.

The square root of 70742437 is about 8410.8523349302. The cubic root of 70742437 is about 413.5804539554.

The spelling of 70742437 in words is "seventy million, seven hundred forty-two thousand, four hundred thirty-seven".