42776961 has 8 divisors (see below), whose sum is σ = 60037920. Its totient is φ = 27016992.

The previous prime is 42776957. The next prime is 42776969. The reversal of 42776961 is 16967724.

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

It is not a de Polignac number, because 42776961 - 2² = 42776957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42776969) by changing a digit.

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, 375180 + ... + 375293.

It is an arithmetic number, because the mean of its divisors is an integer number (7504740).

Almost surely, 2^42776961 is an apocalyptic number.

It is an amenable number.

42776961 is a deficient number, since it is larger than the sum of its proper divisors (17260959).

42776961 is a wasteful number, since it uses less digits than its factorization.

42776961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750495.

The product of its digits is 127008, while the sum is 42.

The square root of 42776961 is about 6540.4098495431. The cubic root of 42776961 is about 349.7330236158.

The spelling of 42776961 in words is "forty-two million, seven hundred seventy-six thousand, nine hundred sixty-one".