87301421 has 4 divisors (see below), whose sum is σ = 87824352. Its totient is φ = 86778492.

The previous prime is 87301391. The next prime is 87301429. The reversal of 87301421 is 12410378.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12410378 = 2 ⋅6205189.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87301421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87301429) 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 3 ways as a sum of consecutive naturals, for example, 261215 + ... + 261548.

It is an arithmetic number, because the mean of its divisors is an integer number (21956088).

Almost surely, 2^87301421 is an apocalyptic number.

It is an amenable number.

87301421 is a deficient number, since it is larger than the sum of its proper divisors (522931).

87301421 is a wasteful number, since it uses less digits than its factorization.

87301421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522930.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 87301421 is about 9343.5229437295. The cubic root of 87301421 is about 443.6159006026.

Adding to 87301421 its reverse (12410378), we get a palindrome (99711799).

The spelling of 87301421 in words is "eighty-seven million, three hundred one thousand, four hundred twenty-one".