73147887 has 16 divisors (see below), whose sum is σ = 108609280. Its totient is φ = 48656376.

The previous prime is 73147883. The next prime is 73147901. The reversal of 73147887 is 78874137.

It is a happy number.

It is not a de Polignac number, because 73147887 - 2² = 73147883 is a prime.

It is a super-2 number, since 2×73147887² = 10701226745129538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73147883) 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, 10368 + ... + 15930.

It is an arithmetic number, because the mean of its divisors is an integer number (6788080).

Almost surely, 2^73147887 is an apocalyptic number.

73147887 is a deficient number, since it is larger than the sum of its proper divisors (35461393).

73147887 is a wasteful number, since it uses less digits than its factorization.

73147887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6059 (or 6053 counting only the distinct ones).

The product of its digits is 263424, while the sum is 45.

The square root of 73147887 is about 8552.6537986756. The cubic root of 73147887 is about 418.2159529864.

The spelling of 73147887 in words is "seventy-three million, one hundred forty-seven thousand, eight hundred eighty-seven".