87020235 has 12 divisors (see below), whose sum is σ = 150835152. Its totient is φ = 46410768.

The previous prime is 87020207. The next prime is 87020239. The reversal of 87020235 is 53202078.

It is not a de Polignac number, because 87020235 - 2⁷ = 87020107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87020199 and 87020208.

It is not an unprimeable number, because it can be changed into a prime (87020239) 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, 966847 + ... + 966936.

It is an arithmetic number, because the mean of its divisors is an integer number (12569596).

Almost surely, 2^87020235 is an apocalyptic number.

87020235 is a deficient number, since it is larger than the sum of its proper divisors (63814917).

87020235 is a wasteful number, since it uses less digits than its factorization.

87020235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933794 (or 1933791 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 87020235 is about 9328.4636998811. The cubic root of 87020235 is about 443.1391128583.

The spelling of 87020235 in words is "eighty-seven million, twenty thousand, two hundred thirty-five".