3720998 has 16 divisors (see below), whose sum is σ = 5918640. Its totient is φ = 1749600.

The previous prime is 3720989. The next prime is 3721027. The reversal of 3720998 is 8990273.

3720998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3720998² = 27691652232008, which contains 22 as substring.

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

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6608 + ... + 7148.

It is an arithmetic number, because the mean of its divisors is an integer number (369915).

Almost surely, 2^3720998 is an apocalyptic number.

3720998 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3720998 is a deficient number, since it is larger than the sum of its proper divisors (2197642).

3720998 is a wasteful number, since it uses less digits than its factorization.

3720998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 3720998 is about 1928.9888542965. The cubic root of 3720998 is about 154.9600729625.

It can be divided in two parts, 372099 and 8, that multiplied together give a palindrome (2976792).

The spelling of 3720998 in words is "three million, seven hundred twenty thousand, nine hundred ninety-eight".