54860687 has 4 divisors (see below), whose sum is σ = 62697936. Its totient is φ = 47023440.

The previous prime is 54860653. The next prime is 54860693. The reversal of 54860687 is 78606845.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78606845 = 5 ⋅15721369.

It is a cyclic number.

It is not a de Polignac number, because 54860687 - 2¹⁶ = 54795151 is a prime.

It is a super-2 number, since 2×54860687² = 6019389956223938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54860287) 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, 3918614 + ... + 3918627.

It is an arithmetic number, because the mean of its divisors is an integer number (15674484).

Almost surely, 2^54860687 is an apocalyptic number.

54860687 is a deficient number, since it is larger than the sum of its proper divisors (7837249).

54860687 is an equidigital number, since it uses as much as digits as its factorization.

54860687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7837248.

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 54860687 is about 7406.8000513042. The cubic root of 54860687 is about 379.9738832466.

The spelling of 54860687 in words is "fifty-four million, eight hundred sixty thousand, six hundred eighty-seven".