42761487 has 4 divisors (see below), whose sum is σ = 57015320. Its totient is φ = 28507656.

The previous prime is 42761473. The next prime is 42761491. The reversal of 42761487 is 78416724.

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

It is not a de Polignac number, because 42761487 - 2⁸ = 42761231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42761417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7126912 + ... + 7126917.

It is an arithmetic number, because the mean of its divisors is an integer number (14253830).

Almost surely, 2^42761487 is an apocalyptic number.

42761487 is a deficient number, since it is larger than the sum of its proper divisors (14253833).

42761487 is a wasteful number, since it uses less digits than its factorization.

42761487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14253832.

The product of its digits is 75264, while the sum is 39.

The square root of 42761487 is about 6539.2267891548. The cubic root of 42761487 is about 349.6908480977.

The spelling of 42761487 in words is "forty-two million, seven hundred sixty-one thousand, four hundred eighty-seven".