3900497 has 6 divisors (see below), whose sum is σ = 4138578. Its totient is φ = 3663392.

The previous prime is 3900473. The next prime is 3900499. The reversal of 3900497 is 7940093.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3671056 + 229441 = 1916^2 + 479^2 .

It is not a de Polignac number, because 3900497 - 2⁶ = 3900433 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (3900499) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7904 + ... + 8382.

It is an arithmetic number, because the mean of its divisors is an integer number (689763).

Almost surely, 2^3900497 is an apocalyptic number.

It is an amenable number.

3900497 is a deficient number, since it is larger than the sum of its proper divisors (238081).

3900497 is an frugal number, since it uses more digits than its factorization.

3900497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 3900497 is about 1974.9675946709. The cubic root of 3900497 is about 157.4127777747.

The spelling of 3900497 in words is "three million, nine hundred thousand, four hundred ninety-seven".