61028471 has 6 divisors (see below), whose sum is σ = 70992360. Its totient is φ = 52310076.

The previous prime is 61028447. The next prime is 61028483. The reversal of 61028471 is 17482016.

It is not a de Polignac number, because 61028471 - 2¹⁴ = 61012087 is a prime.

It is a super-3 number, since 3×61028471³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61028971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 622691 + ... + 622788.

It is an arithmetic number, because the mean of its divisors is an integer number (11832060).

Almost surely, 2^61028471 is an apocalyptic number.

61028471 is a deficient number, since it is larger than the sum of its proper divisors (9963889).

61028471 is a wasteful number, since it uses less digits than its factorization.

61028471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245493 (or 1245486 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 61028471 is about 7812.0721322835. The cubic root of 61028471 is about 393.7109525065.

The spelling of 61028471 in words is "sixty-one million, twenty-eight thousand, four hundred seventy-one".