87042207 has 16 divisors (see below), whose sum is σ = 134455040. Its totient is φ = 49056192.

The previous prime is 87042187. The next prime is 87042223. The reversal of 87042207 is 70224078.

It is not a de Polignac number, because 87042207 - 2⁸ = 87041951 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 (87042247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26857 + ... + 29922.

It is an arithmetic number, because the mean of its divisors is an integer number (8403440).

Almost surely, 2^87042207 is an apocalyptic number.

87042207 is a deficient number, since it is larger than the sum of its proper divisors (47412833).

87042207 is a wasteful number, since it uses less digits than its factorization.

87042207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56862.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 87042207 is about 9329.6413114331. The cubic root of 87042207 is about 443.1764062274.

The spelling of 87042207 in words is "eighty-seven million, forty-two thousand, two hundred seven".