47577789 has 12 divisors (see below), whose sum is σ = 78541216. Its totient is φ = 27187272.

The previous prime is 47577787. The next prime is 47577791. The reversal of 47577789 is 98777574.

It is an interprime number because it is at equal distance from previous prime (47577787) and next prime (47577791).

It is not a de Polignac number, because 47577789 - 2¹ = 47577787 is a prime.

It is a super-2 number, since 2×47577789² = 4527292012257042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47577787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 377539 + ... + 377664.

Almost surely, 2^47577789 is an apocalyptic number.

It is an amenable number.

47577789 is a deficient number, since it is larger than the sum of its proper divisors (30963427).

47577789 is a wasteful number, since it uses less digits than its factorization.

47577789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755216 (or 755213 counting only the distinct ones).

The product of its digits is 3457440, while the sum is 54.

The square root of 47577789 is about 6897.6654746371. The cubic root of 47577789 is about 362.3554118571.

The spelling of 47577789 in words is "forty-seven million, five hundred seventy-seven thousand, seven hundred eighty-nine".