61084641 has 4 divisors (see below), whose sum is σ = 81446192. Its totient is φ = 40723092.

The previous prime is 61084633. The next prime is 61084649. The reversal of 61084641 is 14648016.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (61084633) and next prime (61084649).

It is not a de Polignac number, because 61084641 - 2³ = 61084633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61084599 and 61084608.

It is not an unprimeable number, because it can be changed into a prime (61084649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10180771 + ... + 10180776.

It is an arithmetic number, because the mean of its divisors is an integer number (20361548).

Almost surely, 2^61084641 is an apocalyptic number.

It is an amenable number.

61084641 is a deficient number, since it is larger than the sum of its proper divisors (20361551).

61084641 is a wasteful number, since it uses less digits than its factorization.

61084641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20361550.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 61084641 is about 7815.6663823375. Note that the first 3 decimals coincide. The cubic root of 61084641 is about 393.8317046875.

The spelling of 61084641 in words is "sixty-one million, eighty-four thousand, six hundred forty-one".