73969487 has 4 divisors (see below), whose sum is σ = 73994280. Its totient is φ = 73944696.

The previous prime is 73969481. The next prime is 73969507. The reversal of 73969487 is 78496937.

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 73969487 - 2¹² = 73965391 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 (73969481) 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, 7193 + ... + 14130.

It is an arithmetic number, because the mean of its divisors is an integer number (18498570).

Almost surely, 2^73969487 is an apocalyptic number.

73969487 is a deficient number, since it is larger than the sum of its proper divisors (24793).

73969487 is a wasteful number, since it uses less digits than its factorization.

73969487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24792.

The product of its digits is 2286144, while the sum is 53.

The square root of 73969487 is about 8600.5515520808. The cubic root of 73969487 is about 419.7759330153.

The spelling of 73969487 in words is "seventy-three million, nine hundred sixty-nine thousand, four hundred eighty-seven".