46278987 has 4 divisors (see below), whose sum is σ = 61705320. Its totient is φ = 30852656.

The previous prime is 46278961. The next prime is 46279027. The reversal of 46278987 is 78987264.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 46278987 - 2⁶ = 46278923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (46278937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7713162 + ... + 7713167.

It is an arithmetic number, because the mean of its divisors is an integer number (15426330).

Almost surely, 2^46278987 is an apocalyptic number.

46278987 is a deficient number, since it is larger than the sum of its proper divisors (15426333).

46278987 is a wasteful number, since it uses less digits than its factorization.

46278987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15426332.

The product of its digits is 1354752, while the sum is 51.

The square root of 46278987 is about 6802.8660871724. The cubic root of 46278987 is about 359.0276926623.

The spelling of 46278987 in words is "forty-six million, two hundred seventy-eight thousand, nine hundred eighty-seven".