61402766 has 4 divisors (see below), whose sum is σ = 92104152. Its totient is φ = 30701382.

The previous prime is 61402741. The next prime is 61402769. The reversal of 61402766 is 66720416.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61402769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15350690 + ... + 15350693.

It is an arithmetic number, because the mean of its divisors is an integer number (23026038).

Almost surely, 2^61402766 is an apocalyptic number.

61402766 is a deficient number, since it is larger than the sum of its proper divisors (30701386).

61402766 is a wasteful number, since it uses less digits than its factorization.

61402766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30701385.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 61402766 is about 7835.9917049471. The cubic root of 61402766 is about 394.5142048995.

The spelling of 61402766 in words is "sixty-one million, four hundred two thousand, seven hundred sixty-six".