61429892 has 6 divisors (see below), whose sum is σ = 107502318. Its totient is φ = 30714944.

The previous prime is 61429871. The next prime is 61429897. The reversal of 61429892 is 29892416.

It can be written as a sum of positive squares in only one way, i.e., 52041796 + 9388096 = 7214^2 + 3064^2 .

It is a super-2 number, since 2×61429892² = 7547263262263328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61429897) 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 as a sum of consecutive naturals, namely, 7678733 + ... + 7678740.

It is an arithmetic number, because the mean of its divisors is an integer number (17917053).

Almost surely, 2^61429892 is an apocalyptic number.

It is an amenable number.

61429892 is a deficient number, since it is larger than the sum of its proper divisors (46072426).

61429892 is a wasteful number, since it uses less digits than its factorization.

61429892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15357477 (or 15357475 counting only the distinct ones).

The product of its digits is 62208, while the sum is 41.

The square root of 61429892 is about 7837.7223732408. The cubic root of 61429892 is about 394.5722914078.

The spelling of 61429892 in words is "sixty-one million, four hundred twenty-nine thousand, eight hundred ninety-two".