3897470 has 32 divisors (see below), whose sum is σ = 7512480. Its totient is φ = 1451520.

The previous prime is 3897463. The next prime is 3897497. The reversal of 3897470 is 747983.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a plaindrome in base 11.

It is a zygodrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13730 + ... + 14010.

It is an arithmetic number, because the mean of its divisors is an integer number (234765).

Almost surely, 2^3897470 is an apocalyptic number.

3897470 is a deficient number, since it is larger than the sum of its proper divisors (3615010).

3897470 is a wasteful number, since it uses less digits than its factorization.

3897470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 3897470 is about 1974.2011042444. The cubic root of 3897470 is about 157.3720469146.

The spelling of 3897470 in words is "three million, eight hundred ninety-seven thousand, four hundred seventy".