61634562 has 32 divisors (see below), whose sum is σ = 137761344. Its totient is φ = 18220800.

The previous prime is 61634561. The next prime is 61634593. The reversal of 61634562 is 26543616.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (61634561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8683 + ... + 14094.

It is an arithmetic number, because the mean of its divisors is an integer number (4305042).

Almost surely, 2^61634562 is an apocalyptic number.

61634562 is an abundant number, since it is smaller than the sum of its proper divisors (76126782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61634562 is a wasteful number, since it uses less digits than its factorization.

61634562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22834.

The product of its digits is 25920, while the sum is 33.

The square root of 61634562 is about 7850.7682426626. The cubic root of 61634562 is about 395.0100130987.

The spelling of 61634562 in words is "sixty-one million, six hundred thirty-four thousand, five hundred sixty-two".