63494837 has 6 divisors (see below), whose sum is σ = 73861398. Its totient is φ = 54424104.

The previous prime is 63494831. The next prime is 63494843. The reversal of 63494837 is 73849436.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (63494831) and next prime (63494843).

It can be written as a sum of positive squares in only one way, i.e., 57896881 + 5597956 = 7609^2 + 2366^2 .

It is not a de Polignac number, because 63494837 - 2⁸ = 63494581 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 (63494831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 647858 + ... + 647955.

It is an arithmetic number, because the mean of its divisors is an integer number (12310233).

Almost surely, 2^63494837 is an apocalyptic number.

It is an amenable number.

63494837 is a deficient number, since it is larger than the sum of its proper divisors (10366561).

63494837 is a wasteful number, since it uses less digits than its factorization.

63494837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295827 (or 1295820 counting only the distinct ones).

The product of its digits is 435456, while the sum is 44.

The square root of 63494837 is about 7968.3647632372. The cubic root of 63494837 is about 398.9447958918.

The spelling of 63494837 in words is "sixty-three million, four hundred ninety-four thousand, eight hundred thirty-seven".