61238077 has 4 divisors (see below), whose sum is σ = 61435296. Its totient is φ = 61040860.

The previous prime is 61238059. The next prime is 61238081. The reversal of 61238077 is 77083216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61238077 - 2¹⁹ = 60713789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61238477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98143 + ... + 98764.

It is an arithmetic number, because the mean of its divisors is an integer number (15358824).

Almost surely, 2^61238077 is an apocalyptic number.

It is an amenable number.

61238077 is a deficient number, since it is larger than the sum of its proper divisors (197219).

61238077 is a wasteful number, since it uses less digits than its factorization.

61238077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197218.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 61238077 is about 7825.4761516473. The cubic root of 61238077 is about 394.1611788698.

The spelling of 61238077 in words is "sixty-one million, two hundred thirty-eight thousand, seventy-seven".