61572703 has 2 divisors, whose sum is σ = 61572704. Its totient is φ = 61572702.

The previous prime is 61572701. The next prime is 61572737. The reversal of 61572703 is 30727516.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61572703 - 2¹ = 61572701 is a prime.

Together with 61572701, it forms a pair of twin primes.

It is equal to p_3649810 and since 61572703 and 3649810 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61572701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30786351 + 30786352.

It is an arithmetic number, because the mean of its divisors is an integer number (30786352).

Almost surely, 2^61572703 is an apocalyptic number.

61572703 is a deficient number, since it is larger than the sum of its proper divisors (1).

61572703 is an equidigital number, since it uses as much as digits as its factorization.

61572703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 61572703 is about 7846.8275755238. The cubic root of 61572703 is about 394.8778193922.

The spelling of 61572703 in words is "sixty-one million, five hundred seventy-two thousand, seven hundred three".