3405387 has 4 divisors (see below), whose sum is σ = 4540520.
Its totient is φ = 2270256.
The previous prime is 3405371. The next prime is 3405397. The reversal of 3405387 is 7835043.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 3405387 - 24 = 3405371 is a prime.
It is a D-number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (3405397) 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, 567562 + ... + 567567.
It is an arithmetic number, because the mean of its divisors is an integer number (1135130).
Almost surely, 23405387 is an apocalyptic number.
3405387 is a deficient number, since it is larger than the sum of its proper divisors (1135133).
3405387 is a wasteful number, since it uses less digits than its factorization.
3405387 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1135132.
The product of its (nonzero) digits is 10080, while the sum is 30.
The square root of 3405387 is about 1845.3690687773.
The cubic root of 3405387 is about 150.4488334286.
The spelling of 3405387 in words is "three million, four hundred five thousand, three hundred eighty-seven".