61002077 has 2 divisors, whose sum is σ = 61002078. Its totient is φ = 61002076.

The previous prime is 61002041. The next prime is 61002119. The reversal of 61002077 is 77020016.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54479161 + 6522916 = 7381^2 + 2554^2 .

It is a cyclic number.

It is not a de Polignac number, because 61002077 - 2¹⁰ = 61001053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61002577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30501038 + 30501039.

It is an arithmetic number, because the mean of its divisors is an integer number (30501039).

Almost surely, 2^61002077 is an apocalyptic number.

It is an amenable number.

61002077 is a deficient number, since it is larger than the sum of its proper divisors (1).

61002077 is an equidigital number, since it uses as much as digits as its factorization.

61002077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 61002077 is about 7810.3826410746. The cubic root of 61002077 is about 393.6541860763.

The spelling of 61002077 in words is "sixty-one million, two thousand, seventy-seven".