72050687 has 4 divisors (see below), whose sum is σ = 72100440. Its totient is φ = 72000936.

The previous prime is 72050677. The next prime is 72050711. The reversal of 72050687 is 78605027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78605027 = 61 ⋅1288607.

It is a cyclic number.

It is not a de Polignac number, because 72050687 - 2⁸ = 72050431 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 (72050617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22637 + ... + 25622.

It is an arithmetic number, because the mean of its divisors is an integer number (18025110).

Almost surely, 2^72050687 is an apocalyptic number.

72050687 is a deficient number, since it is larger than the sum of its proper divisors (49753).

72050687 is a wasteful number, since it uses less digits than its factorization.

72050687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49752.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 72050687 is about 8488.2676088823. The cubic root of 72050687 is about 416.1143650523.

The spelling of 72050687 in words is "seventy-two million, fifty thousand, six hundred eighty-seven".