3751778 has 8 divisors (see below), whose sum is σ = 5923920. Its totient is φ = 1777140.

The previous prime is 3751777. The next prime is 3751801. The reversal of 3751778 is 8771573.

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

It is a super-2 number, since 2×3751778² = 28151676322568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 98731 = 3751778 / (3 + 7 + 5 + 1 + 7 + 7 + 8).

It is not an unprimeable number, because it can be changed into a prime (3751777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49328 + ... + 49403.

It is an arithmetic number, because the mean of its divisors is an integer number (740490).

Almost surely, 2^3751778 is an apocalyptic number.

3751778 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3751778 is a deficient number, since it is larger than the sum of its proper divisors (2172142).

3751778 is a wasteful number, since it uses less digits than its factorization.

3751778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98752.

The product of its digits is 41160, while the sum is 38.

The square root of 3751778 is about 1936.9506963266. The cubic root of 3751778 is about 155.3861754598.

It can be divided in two parts, 37 and 51778, that added together give a palindrome (51815).

The spelling of 3751778 in words is "three million, seven hundred fifty-one thousand, seven hundred seventy-eight".