63477794 has 4 divisors (see below), whose sum is σ = 95216694. Its totient is φ = 31738896.

The previous prime is 63477773. The next prime is 63477797. The reversal of 63477794 is 49777436.

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

It can be written as a sum of positive squares in only one way, i.e., 61418569 + 2059225 = 7837^2 + 1435^2 .

It is a super-2 number, since 2×63477794² = 8058860662212872, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63477797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15869447 + ... + 15869450.

Almost surely, 2^63477794 is an apocalyptic number.

63477794 is a deficient number, since it is larger than the sum of its proper divisors (31738900).

63477794 is a wasteful number, since it uses less digits than its factorization.

63477794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31738899.

The product of its digits is 889056, while the sum is 47.

The square root of 63477794 is about 7967.2952750604. The cubic root of 63477794 is about 398.9090983721.

It can be divided in two parts, 6347 and 7794, that added together give a palindrome (14141).

The spelling of 63477794 in words is "sixty-three million, four hundred seventy-seven thousand, seven hundred ninety-four".