87205426 has 24 divisors (see below), whose sum is σ = 164324160. Its totient is φ = 33975480.

The previous prime is 87205423. The next prime is 87205429. The reversal of 87205426 is 62450278.

It is an interprime number because it is at equal distance from previous prime (87205423) and next prime (87205429).

It is a junction number, because it is equal to n+sod(n) for n = 87205391 and 87205400.

It is not an unprimeable number, because it can be changed into a prime (87205423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24046 + ... + 27433.

It is an arithmetic number, because the mean of its divisors is an integer number (6846840).

Almost surely, 2^87205426 is an apocalyptic number.

87205426 is a deficient number, since it is larger than the sum of its proper divisors (77118734).

87205426 is a wasteful number, since it uses less digits than its factorization.

87205426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51510 (or 51499 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 87205426 is about 9338.3845498030. The cubic root of 87205426 is about 443.4532437372.

The spelling of 87205426 in words is "eighty-seven million, two hundred five thousand, four hundred twenty-six".