3469987 has 4 divisors (see below), whose sum is σ = 3620880. Its totient is φ = 3319096.

The previous prime is 3469969. The next prime is 3470003. The reversal of 3469987 is 7899643.

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 3469987 - 2⁷ = 3469859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3469957) 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, 75412 + ... + 75457.

It is an arithmetic number, because the mean of its divisors is an integer number (905220).

Almost surely, 2^3469987 is an apocalyptic number.

3469987 is a deficient number, since it is larger than the sum of its proper divisors (150893).

3469987 is a wasteful number, since it uses less digits than its factorization.

3469987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150892.

The product of its digits is 326592, while the sum is 46.

The square root of 3469987 is about 1862.7901116336. The cubic root of 3469987 is about 151.3942157477.

The spelling of 3469987 in words is "three million, four hundred sixty-nine thousand, nine hundred eighty-seven".