3431657 has 8 divisors (see below), whose sum is σ = 3600840. Its totient is φ = 3265920.

The previous prime is 3431641. The next prime is 3431689. The reversal of 3431657 is 7561343.

It can be written as a sum of positive squares in 4 ways, for example, as 1032256 + 2399401 = 1016^2 + 1549^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3431657 - 2⁴ = 3431641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3433657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1307 + ... + 2927.

It is an arithmetic number, because the mean of its divisors is an integer number (450105).

Almost surely, 2^3431657 is an apocalyptic number.

It is an amenable number.

3431657 is a deficient number, since it is larger than the sum of its proper divisors (169183).

3431657 is a wasteful number, since it uses less digits than its factorization.

3431657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723.

The product of its digits is 7560, while the sum is 29.

The square root of 3431657 is about 1852.4732116822. The cubic root of 3431657 is about 150.8347094150.

The spelling of 3431657 in words is "three million, four hundred thirty-one thousand, six hundred fifty-seven".