61223477 has 16 divisors (see below), whose sum is σ = 74328192. Its totient is φ = 49228800.

The previous prime is 61223471. The next prime is 61223479. The reversal of 61223477 is 77432216.

61223477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 61223477 - 2⁶ = 61223413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61223471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47078 + ... + 48360.

It is an arithmetic number, because the mean of its divisors is an integer number (4645512).

Almost surely, 2^61223477 is an apocalyptic number.

It is an amenable number.

61223477 is a deficient number, since it is larger than the sum of its proper divisors (13104715).

61223477 is a wasteful number, since it uses less digits than its factorization.

61223477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708.

The product of its digits is 14112, while the sum is 32.

The square root of 61223477 is about 7824.5432454553. The cubic root of 61223477 is about 394.1298518975.

The spelling of 61223477 in words is "sixty-one million, two hundred twenty-three thousand, four hundred seventy-seven".