87472271 has 2 divisors, whose sum is σ = 87472272. Its totient is φ = 87472270.

The previous prime is 87472261. The next prime is 87472291. The reversal of 87472271 is 17227478.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87472271 - 2¹⁴ = 87455887 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87472211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43736135 + 43736136.

It is an arithmetic number, because the mean of its divisors is an integer number (43736136).

Almost surely, 2^87472271 is an apocalyptic number.

87472271 is a deficient number, since it is larger than the sum of its proper divisors (1).

87472271 is an equidigital number, since it uses as much as digits as its factorization.

87472271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43904, while the sum is 38.

The square root of 87472271 is about 9352.6611720943. The cubic root of 87472271 is about 443.9050993640.

The spelling of 87472271 in words is "eighty-seven million, four hundred seventy-two thousand, two hundred seventy-one".