42776984 has 8 divisors (see below), whose sum is σ = 80206860. Its totient is φ = 21388488.

The previous prime is 42776983. The next prime is 42777011. The reversal of 42776984 is 48967724.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42776983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2673554 + ... + 2673569.

Almost surely, 2^42776984 is an apocalyptic number.

It is an amenable number.

42776984 is a deficient number, since it is larger than the sum of its proper divisors (37429876).

42776984 is a wasteful number, since it uses less digits than its factorization.

42776984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5347129 (or 5347125 counting only the distinct ones).

The product of its digits is 677376, while the sum is 47.

The square root of 42776984 is about 6540.4116078424. The cubic root of 42776984 is about 349.7330862964.

The spelling of 42776984 in words is "forty-two million, seven hundred seventy-six thousand, nine hundred eighty-four".