87451411 has 2 divisors, whose sum is σ = 87451412. Its totient is φ = 87451410.

The previous prime is 87451409. The next prime is 87451439. The reversal of 87451411 is 11415478.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87451411 - 2¹ = 87451409 is a prime.

Together with 87451409, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (87455411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43725705 + 43725706.

It is an arithmetic number, because the mean of its divisors is an integer number (43725706).

Almost surely, 2^87451411 is an apocalyptic number.

87451411 is a deficient number, since it is larger than the sum of its proper divisors (1).

87451411 is an equidigital number, since it uses as much as digits as its factorization.

87451411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4480, while the sum is 31.

The square root of 87451411 is about 9351.5459149811. The cubic root of 87451411 is about 443.8698097176.

Adding to 87451411 its reverse (11415478), we get a palindrome (98866889).

The spelling of 87451411 in words is "eighty-seven million, four hundred fifty-one thousand, four hundred eleven".