61406497 has 2 divisors, whose sum is σ = 61406498. Its totient is φ = 61406496.

The previous prime is 61406491. The next prime is 61406503. The reversal of 61406497 is 79460416.

It is a balanced prime because it is at equal distance from previous prime (61406491) and next prime (61406503).

It can be written as a sum of positive squares in only one way, i.e., 39137536 + 22268961 = 6256^2 + 4719^2 .

It is a cyclic number.

It is not a de Polignac number, because 61406497 - 2²³ = 53017889 is a prime.

It is a super-2 number, since 2×61406497² = 7541515747622018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61406491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30703248 + 30703249.

It is an arithmetic number, because the mean of its divisors is an integer number (30703249).

Almost surely, 2^61406497 is an apocalyptic number.

It is an amenable number.

61406497 is a deficient number, since it is larger than the sum of its proper divisors (1).

61406497 is an equidigital number, since it uses as much as digits as its factorization.

61406497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 61406497 is about 7836.2297694746. The cubic root of 61406497 is about 394.5221953250.

The spelling of 61406497 in words is "sixty-one million, four hundred six thousand, four hundred ninety-seven".