70040237 has 2 divisors, whose sum is σ = 70040238. Its totient is φ = 70040236.

The previous prime is 70040233. The next prime is 70040263. The reversal of 70040237 is 73204007.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68326756 + 1713481 = 8266^2 + 1309^2 .

It is a cyclic number.

It is not a de Polignac number, because 70040237 - 2² = 70040233 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70040231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35020118 + 35020119.

It is an arithmetic number, because the mean of its divisors is an integer number (35020119).

Almost surely, 2^70040237 is an apocalyptic number.

It is an amenable number.

70040237 is a deficient number, since it is larger than the sum of its proper divisors (1).

70040237 is an equidigital number, since it uses as much as digits as its factorization.

70040237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 70040237 is about 8369.0045405651. The cubic root of 70040237 is about 412.2074806443.

The spelling of 70040237 in words is "seventy million, forty thousand, two hundred thirty-seven".