47261787 has 16 divisors (see below), whose sum is σ = 63888000. Its totient is φ = 31075200.

The previous prime is 47261771. The next prime is 47261791. The reversal of 47261787 is 78716274.

It is not a de Polignac number, because 47261787 - 2⁴ = 47261771 is a prime.

It is a super-4 number, since 4×47261787⁴ (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (47261087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94464 + ... + 94962.

It is an arithmetic number, because the mean of its divisors is an integer number (3993000).

Almost surely, 2^47261787 is an apocalyptic number.

47261787 is a deficient number, since it is larger than the sum of its proper divisors (16626213).

47261787 is a wasteful number, since it uses less digits than its factorization.

47261787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874.

The product of its digits is 131712, while the sum is 42.

The square root of 47261787 is about 6874.7208670607. The cubic root of 47261787 is about 361.5513988696.

The spelling of 47261787 in words is "forty-seven million, two hundred sixty-one thousand, seven hundred eighty-seven".