3550073 has 4 divisors (see below), whose sum is σ = 3704448. Its totient is φ = 3395700.

The previous prime is 3550069. The next prime is 3550091. The reversal of 3550073 is 3700553.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3700553 = 167 ⋅22159.

It is a cyclic number.

It is not a de Polignac number, because 3550073 - 2² = 3550069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 154351 = 3550073 / (3 + 5 + 5 + 0 + 0 + 7 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3550373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77153 + ... + 77198.

It is an arithmetic number, because the mean of its divisors is an integer number (926112).

Almost surely, 2^3550073 is an apocalyptic number.

It is an amenable number.

3550073 is a deficient number, since it is larger than the sum of its proper divisors (154375).

3550073 is a wasteful number, since it uses less digits than its factorization.

3550073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154374.

The product of its (nonzero) digits is 1575, while the sum is 23.

The square root of 3550073 is about 1884.1637402307. The cubic root of 3550073 is about 152.5500758241.

The spelling of 3550073 in words is "three million, five hundred fifty thousand, seventy-three".