40670471 has 2 divisors, whose sum is σ = 40670472. Its totient is φ = 40670470.

The previous prime is 40670467. The next prime is 40670473. The reversal of 40670471 is 17407604.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40670471 - 2² = 40670467 is a prime.

It is a super-3 number, since 3×40670471³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

Together with 40670473, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40670473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20335235 + 20335236.

It is an arithmetic number, because the mean of its divisors is an integer number (20335236).

Almost surely, 2^40670471 is an apocalyptic number.

40670471 is a deficient number, since it is larger than the sum of its proper divisors (1).

40670471 is an equidigital number, since it uses as much as digits as its factorization.

40670471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 40670471 is about 6377.3404331273. The cubic root of 40670471 is about 343.8954269078.

The spelling of 40670471 in words is "forty million, six hundred seventy thousand, four hundred seventy-one".