65087477 has 24 divisors (see below), whose sum is σ = 82780416. Its totient is φ = 50072256.

The previous prime is 65087471. The next prime is 65087479. The reversal of 65087477 is 77478056.

It is not a de Polignac number, because 65087477 - 2⁴ = 65087461 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 (65087471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43028 + ... + 44514.

It is an arithmetic number, because the mean of its divisors is an integer number (3449184).

Almost surely, 2^65087477 is an apocalyptic number.

It is an amenable number.

65087477 is a deficient number, since it is larger than the sum of its proper divisors (17692939).

65087477 is a wasteful number, since it uses less digits than its factorization.

65087477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557 (or 1544 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 44.

The square root of 65087477 is about 8067.6810174920. The cubic root of 65087477 is about 402.2528647630.

The spelling of 65087477 in words is "sixty-five million, eighty-seven thousand, four hundred seventy-seven".