87979419 has 48 divisors (see below), whose sum is σ = 147269760. Its totient is φ = 51453360.

The previous prime is 87979363. The next prime is 87979433. The reversal of 87979419 is 91497978.

It is not a de Polignac number, because 87979419 - 2¹¹ = 87977371 is a prime.

It is a super-2 number, since 2×87979419² = 15480756335155122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87979499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1059952 + ... + 1060034.

It is an arithmetic number, because the mean of its divisors is an integer number (3068120).

Almost surely, 2^87979419 is an apocalyptic number.

87979419 is a deficient number, since it is larger than the sum of its proper divisors (59290341).

87979419 is a wasteful number, since it uses less digits than its factorization.

87979419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 140 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 54.

The square root of 87979419 is about 9379.7344845150. The cubic root of 87979419 is about 444.7613398540.

The spelling of 87979419 in words is "eighty-seven million, nine hundred seventy-nine thousand, four hundred nineteen".