61432004 has 6 divisors (see below), whose sum is σ = 107506014. Its totient is φ = 30716000.

The previous prime is 61431991. The next prime is 61432009. The reversal of 61432004 is 40023416.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 60217600 + 1214404 = 7760^2 + 1102^2 .

It is a super-2 number, since 2×61432004² = 7547782230912032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61432009) 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, 7678997 + ... + 7679004.

It is an arithmetic number, because the mean of its divisors is an integer number (17917669).

Almost surely, 2^61432004 is an apocalyptic number.

It is an amenable number.

61432004 is a deficient number, since it is larger than the sum of its proper divisors (46074010).

61432004 is a wasteful number, since it uses less digits than its factorization.

61432004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15358005 (or 15358003 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 61432004 is about 7837.8571051021. The cubic root of 61432004 is about 394.5768132407.

The spelling of 61432004 in words is "sixty-one million, four hundred thirty-two thousand, four".