61477441 has 2 divisors, whose sum is σ = 61477442. Its totient is φ = 61477440.

The previous prime is 61477439. The next prime is 61477489. The reversal of 61477441 is 14477416.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59290000 + 2187441 = 7700^2 + 1479^2 .

It is a cyclic number.

It is not a de Polignac number, because 61477441 - 2¹ = 61477439 is a prime.

Together with 61477439, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 61477397 and 61477406.

It is not a weakly prime, because it can be changed into another prime (61477411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30738720 + 30738721.

It is an arithmetic number, because the mean of its divisors is an integer number (30738721).

Almost surely, 2^61477441 is an apocalyptic number.

It is an amenable number.

61477441 is a deficient number, since it is larger than the sum of its proper divisors (1).

61477441 is an equidigital number, since it uses as much as digits as its factorization.

61477441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18816, while the sum is 34.

The square root of 61477441 is about 7840.7551294502. The cubic root of 61477441 is about 394.6740696499.

The spelling of 61477441 in words is "sixty-one million, four hundred seventy-seven thousand, four hundred forty-one".