3778534 has 4 divisors (see below), whose sum is σ = 5667804. Its totient is φ = 1889266.

The previous prime is 3778531. The next prime is 3778571. The reversal of 3778534 is 4358773.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4358773 = 53 ⋅82241.

It is a junction number, because it is equal to n+sod(n) for n = 3778493 and 3778502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3778531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 944632 + ... + 944635.

It is an arithmetic number, because the mean of its divisors is an integer number (1416951).

Almost surely, 2^3778534 is an apocalyptic number.

3778534 is a deficient number, since it is larger than the sum of its proper divisors (1889270).

3778534 is a wasteful number, since it uses less digits than its factorization.

3778534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889269.

The product of its digits is 70560, while the sum is 37.

The square root of 3778534 is about 1943.8451584424. The cubic root of 3778534 is about 155.7546823660.

It can be divided in two parts, 377 and 8534, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 3778534 in words is "three million, seven hundred seventy-eight thousand, five hundred thirty-four".