3678457 has 4 divisors (see below), whose sum is σ = 3872080. Its totient is φ = 3484836.

The previous prime is 3678431. The next prime is 3678461. The reversal of 3678457 is 7548763.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3678457 is a prime.

It is a Duffinian number.

3678457 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3678407) 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, 96783 + ... + 96820.

It is an arithmetic number, because the mean of its divisors is an integer number (968020).

Almost surely, 2^3678457 is an apocalyptic number.

It is an amenable number.

3678457 is a deficient number, since it is larger than the sum of its proper divisors (193623).

3678457 is a wasteful number, since it uses less digits than its factorization.

3678457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193622.

The product of its digits is 141120, while the sum is 40.

The square root of 3678457 is about 1917.9303949831. The cubic root of 3678457 is about 154.3672714910.

The spelling of 3678457 in words is "three million, six hundred seventy-eight thousand, four hundred fifty-seven".