87451011 has 12 divisors (see below), whose sum is σ = 126887488. Its totient is φ = 58037904.

The previous prime is 87450997. The next prime is 87451033. The reversal of 87451011 is 11015478.

It is not a de Polignac number, because 87451011 - 2¹⁸ = 87188867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87451051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19780 + ... + 23793.

Almost surely, 2^87451011 is an apocalyptic number.

87451011 is a deficient number, since it is larger than the sum of its proper divisors (39436477).

87451011 is a wasteful number, since it uses less digits than its factorization.

87451011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43802 (or 43799 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 87451011 is about 9351.5245281184. The cubic root of 87451011 is about 443.8691329677.

Adding to 87451011 its reverse (11015478), we get a palindrome (98466489).

The spelling of 87451011 in words is "eighty-seven million, four hundred fifty-one thousand, eleven".