61005474 has 20 divisors (see below), whose sum is σ = 136697814. Its totient is φ = 20335104.

The previous prime is 61005457. The next prime is 61005479. The reversal of 61005474 is 47450016.

61005474 is a `hidden beast` number, since 610 + 0 + 5 + 47 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 42575625 + 18429849 = 6525^2 + 4293^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (61005479) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 188127 + ... + 188450.

Almost surely, 2^61005474 is an apocalyptic number.

61005474 is an abundant number, since it is smaller than the sum of its proper divisors (75692340).

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

61005474 is a wasteful number, since it uses less digits than its factorization.

61005474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376591 (or 376582 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 61005474 is about 7810.6001049855. The cubic root of 61005474 is about 393.6614930321.

The spelling of 61005474 in words is "sixty-one million, five thousand, four hundred seventy-four".