87229429387 has 2 divisors, whose sum is σ = 87229429388. Its totient is φ = 87229429386.

The previous prime is 87229429379. The next prime is 87229429393. The reversal of 87229429387 is 78392492278.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87229429387 - 2³ = 87229429379 is a prime.

It is a super-3 number, since 3×87229429387³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (87229429307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43614714693 + 43614714694.

It is an arithmetic number, because the mean of its divisors is an integer number (43614714694).

Almost surely, 2^87229429387 is an apocalyptic number.

87229429387 is a deficient number, since it is larger than the sum of its proper divisors (1).

87229429387 is an equidigital number, since it uses as much as digits as its factorization.

87229429387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24385536, while the sum is 61.

The spelling of 87229429387 in words is "eighty-seven billion, two hundred twenty-nine million, four hundred twenty-nine thousand, three hundred eighty-seven".