61634488 has 8 divisors (see below), whose sum is σ = 115564680. Its totient is φ = 30817240.

The previous prime is 61634477. The next prime is 61634491. The reversal of 61634488 is 88443616.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×61634488² = 7597620222044288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61634488.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3852148 + ... + 3852163.

It is an arithmetic number, because the mean of its divisors is an integer number (14445585).

Almost surely, 2^61634488 is an apocalyptic number.

It is an amenable number.

61634488 is a deficient number, since it is larger than the sum of its proper divisors (53930192).

61634488 is a wasteful number, since it uses less digits than its factorization.

61634488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7704317 (or 7704313 counting only the distinct ones).

The product of its digits is 110592, while the sum is 40.

The square root of 61634488 is about 7850.7635297466. The cubic root of 61634488 is about 395.0098550124.

The spelling of 61634488 in words is "sixty-one million, six hundred thirty-four thousand, four hundred eighty-eight".