61293047 has 2 divisors, whose sum is σ = 61293048. Its totient is φ = 61293046.

The previous prime is 61293013. The next prime is 61293049. The reversal of 61293047 is 74039216.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61293047 is a prime.

It is a super-2 number, since 2×61293047² = 7513675221088418, which contains 22 as substring.

Together with 61293049, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61293049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30646523 + 30646524.

It is an arithmetic number, because the mean of its divisors is an integer number (30646524).

Almost surely, 2^61293047 is an apocalyptic number.

61293047 is a deficient number, since it is larger than the sum of its proper divisors (1).

61293047 is an equidigital number, since it uses as much as digits as its factorization.

61293047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 61293047 is about 7828.9876101575. The cubic root of 61293047 is about 394.2790824204.

The spelling of 61293047 in words is "sixty-one million, two hundred ninety-three thousand, forty-seven".