72635671 has 2 divisors, whose sum is σ = 72635672. Its totient is φ = 72635670.

The previous prime is 72635663. The next prime is 72635677. The reversal of 72635671 is 17653627.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72635671 - 2³ = 72635663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72635671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72635677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36317835 + 36317836.

It is an arithmetic number, because the mean of its divisors is an integer number (36317836).

Almost surely, 2^72635671 is an apocalyptic number.

72635671 is a deficient number, since it is larger than the sum of its proper divisors (1).

72635671 is an equidigital number, since it uses as much as digits as its factorization.

72635671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 37.

The square root of 72635671 is about 8522.6563347351. The cubic root of 72635671 is about 417.2374837436.

The spelling of 72635671 in words is "seventy-two million, six hundred thirty-five thousand, six hundred seventy-one".