42947654 has 4 divisors (see below), whose sum is σ = 64421484. Its totient is φ = 21473826.

The previous prime is 42947651. The next prime is 42947659. The reversal of 42947654 is 45674924.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42947651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10736912 + ... + 10736915.

It is an arithmetic number, because the mean of its divisors is an integer number (16105371).

Almost surely, 2^42947654 is an apocalyptic number.

42947654 is a deficient number, since it is larger than the sum of its proper divisors (21473830).

42947654 is a wasteful number, since it uses less digits than its factorization.

42947654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21473829.

The product of its digits is 241920, while the sum is 41.

The square root of 42947654 is about 6553.4459637659. The cubic root of 42947654 is about 350.1975863942.

The spelling of 42947654 in words is "forty-two million, nine hundred forty-seven thousand, six hundred fifty-four".