4897990 has 8 divisors (see below), whose sum is σ = 8816400. Its totient is φ = 1959192.

The previous prime is 4897973. The next prime is 4897993. The reversal of 4897990 is 997984.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4897990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4897993) 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, 244890 + ... + 244909.

It is an arithmetic number, because the mean of its divisors is an integer number (1102050).

Almost surely, 2^4897990 is an apocalyptic number.

4897990 is a deficient number, since it is larger than the sum of its proper divisors (3918410).

4897990 is a wasteful number, since it uses less digits than its factorization.

4897990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489806.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 4897990 is about 2213.1403028276. The cubic root of 4897990 is about 169.8266976703.

The spelling of 4897990 in words is "four million, eight hundred ninety-seven thousand, nine hundred ninety".